04 Santa Fe Automatically Downshifts to First Gear When Accelerating UPDATED

04 Santa Fe Automatically Downshifts to First Gear When Accelerating

Type of dual-clutch transmission

This commodity is well-nigh the Volkswagen Group dual-clutch transmissions. For dual-clutch transmissions in full general, see Dual-clutch transmission.

DSG DL 501 Mechatronics

Schematic diagram of a dual-clutch gearbox:

  • M: Motor
  • A: Primary bulldoze and driving shaft
  • B: Dual clutch
  • C: Driven shaft
  • D: Layshaft, hollow, fifty-fifty gears
  • E: Layshaft, odd gears
  • F: Output

A straight-shift gearbox (DSG, German language: Direktschaltgetriebe [i])[2] [three] is an electronically-controlled, dual-clutch,[two] multiple-shaft, automatic gearbox, in either a transaxle or traditional transmission layout (depending on engine/drive configuration), with automated clutch operation, and with fully-automatic[2] or semi-manual gear selection. The beginning dual-clutch transmissions were derived from Porsche in-business firm development for the Porsche 962 in the 1980s.

In unproblematic terms, a DSG automates ii separate "manual" gearboxes (and clutches) contained within one housing and working as one unit.[ii] [3] [iv] It was designed by BorgWarner and is licensed to the Volkswagen Grouping, with support by IAV GmbH.[ citation needed ] By using two contained clutches,[2] [four] a DSG can accomplish faster shift times[2] [iv] and eliminates the torque converter of a conventional epicyclic automatic transmission.[2]

Overview [edit]

Transverse DSG [edit]

At the fourth dimension of launch in 2003,[ii] [5] information technology became the world'southward first automatic dual-clutch transmission in a series-production car,[2] [v] in the German-marketplace Volkswagen Golf Mk4 R32,[2] [5] and shortly afterwards worldwide, in the original Audi TT three.2.[6] and the 2004+ New Protrude TDI. For the first few years of production, this original DSG manual was only bachelor in transversely oriented[two] front end-engine, forepart-wheel-drive and Haldex Traction-based four-wheel-drive vehicle layouts.

The start DSG transaxle that went into production for the Volkswagen Group mainstream marques had 6 frontwards speeds (and one contrary)[5] [vi] and used moisture/submerged multi-plate clutch packs[two] (Volkswagen Grouping internal code: DQ250, parts code prefix: 02E).[6] [7] It has been paired to engines with up to 350 Due north⋅g (260 lb⋅ft) of torque.[v] [6] The 2-wheel-drive version weighs 93 kg (205 lb). It is manufactured at Volkswagen Group'southward Kassel constitute,[ii] with a daily product output of ane,500 units.[5]

At the commencement of 2008, another world-showtime[five] 70 kg (150 lb) vii-speed DSG transaxle[five] (Volkswagen Grouping internal code: DQ200, parts code prefix: 0AM)[vii] [8] [9] became available. It differs from the six-speed DSG, in that it uses two single-plate dry clutches (of similar diameter).[9] This clutch pack was designed past LuK Clutch Systems, Gmbh.[10] This 7-speed DSG is used in smaller front-bicycle-drive cars with smaller-displacement engines with lower torque outputs,[5] [six] [nine] such as the latest Volkswagen Golf,[5] [9] Volkswagen Polo Mk5,[9] and the new SEAT Ibiza.[half dozen] It has been paired to engines with up to 250 N⋅k (180 lb⋅ft).[xi] It has considerably less oil capacity than the half-dozen-speed DQ250; this new DQ200 uses simply one.7 litres (0.37 imp gal; 0.45 United states gal) of transmission fluid.[5]

In September 2010, VW launched a new seven-speed DSG built to support up to 600 N⋅m (440 lb⋅ft), the DQ500.[12]

Audi longitudinal DSG [edit]

In late 2008, an all-new 7-speed longitudinal[6] [13] S tronic [13] version of the DSG transaxle went into series production (Volkswagen Group internal lawmaking: DL501, parts code prefix: 0B5).[7] Initially, from early 2009, information technology is but used in certain Audi cars, and but with longitudinally mounted engines. Like the original six-speed DSG, it features a concentric dual moisture multi-plate clutch.[13] However, this particular variant uses notably more plates – the larger outer clutch (for the odd-numbered gears) uses 10 plates, whereas the smaller inner clutch (driving fifty-fifty-numbered gears and reverse) uses 12 plates.[13] Another notable change over the original transverse DSGs is the lubrication system[fourteen] [15] – Audi now apply two totally separate oil circuits.[thirteen] One oil circuit, consisting of seven.v litres (1.65 imp gal; 1.98 Us gal), lubricates the hydraulic clutches and mechatronics with fully synthetic specialist automated manual fluid (ATF),[13] whilst the other oil circuit lubricates the gear trains and front and centre differentials with iv.3 litres (0.95 imp gal; 1.14 US gal) of conventional hypoid gear oil.[13] This dual excursion lubrication is aimed at increasing overall reliability, due to eliminating cantankerous-contamination of droppings and wear particles.[13] Information technology has a torque handling limit of up to 600 N⋅thousand (440 lb⋅ft),[vi] and engine ability outputs of up to 330 kW (450 PS; 440 bhp).[6] Information technology has a total mass, including all lubricants and the dual-mass flywheel of 141.5 kg (312 lb).[half dozen]

This was initially available in their quattro all-bicycle-drive variants,[7] and is very similar to the new ZF Friedrichshafen-supplied[16] Porsche Doppel-Kupplung (PDK).[17] [eighteen]

List of DSG variants [edit]

Proper name Orientation Ratios Max. torque (N·g) Clutch type Comments
DQ200 Transversal 7 250 Dry 7-speed DSG transmission with dry clutch, almost found on VAG-cars from 2007 till nowadays day. With engine capacity between i.0–1.ix-litre. (Max torque 250Nm)
DQ200e Transversal 7 Dry 7-speed DSG transmission with dry clutch, found on the Volkswagen Jetta one.4 TSI Hybrid.
DQ250 Transversal vi 400 Moisture 6-speed DSG transmission with moisture clutch, nearly found on VAG-cars from 2003 till nowadays 24-hour interval.
DQ380[nineteen] Transversal 7 420 Wet vii-speed DSG transmission with moisture clutch, used in the Golf 7 GTI and Audi S3. Production started in 2015, widespread in China. This transmission is a smaller version of the DQ500, which can be constitute on the Audi RS3 & Audi Q3 ii.0TFSI/TDI engines.
DQ381 Transversal 7 420-430 Wet In 2017 an improvement of DQ380 was derived every bit the DQ381(also known as 0GC), is used in many new vehicles with MQB platform like Arteon. DQ381 has an all wheel drive variant as DQ381-7A, the front drive variant is called DQ381-7F.[20] [21]
DQ400e Transversal 6 400 Wet 6-speed DSG manual with moisture clutch used in the plug-in hybrid Golf game GTE and Passat GTE. The electrical motor is included in the DSG assembly. There are a full of three clutches on this DSG.
DQ500 Transversal 7 600 Wet 7-speed DSG transmission with moisture clutch, by and large found on Transporters 2009-2013, VW Tiguan 2.0TDI 4motion, just also used in the Audi RS3 or VW Passat B8 BiTDI. Also standard on Audi Q3 series with 2.0TFSI/TDI engines.
DQ511 Transversal 10 550 Wet The DQ511 was a planned 10-speed DSG manual. The project was cancelled citing toll and complication bug.[22]
DL382 Longitudinal 7 500[23] Wet 7-speed DSG transmission with wet clutch. Used in the Audi A4/A5/A6/Q5 and Volkswagen Phideon. Production started in 2015 with a 400Nm capacity, both front wheel bulldoze variant DL382-7F and all wheel bulldoze variant DL382-7Q are provided. The Quattro Ultra all wheel drive version DL382-7A is introduced with Q5(typ FY).[24] Starting with Audi A6/A7(typ 4K), the loftier torque variant(up to 500Nm) named equally DL382+ is introduced. 0CK and 0DN are codenames for DL382-7F, 0CL is for DL382-7Q, 0CJ and 0DP are for DL382-7A and 0HL is for DL382+-7A.[25] [26]
DL501 Longitudinal 7 600 Moisture 7-speed DSG manual with wet clutch. (Audi S-tronic)
DL800 Longitudinal 7 Wet 7-speed DSG transmission with wet clutch. Rarely used, only in the 2nd generation Audi R8 (2015–present) and the Lamborghini Huracan.

Operational introduction [edit]

The internal combustion engine drives two clutch packs.[2] [4] The outer clutch pack drives gears i, 3, 5[2] (and 7 when fitted), and reverse[two] – the outer clutch pack has a larger diameter compared to the inner clutch, and can therefore handle greater torque loadings. The inner clutch pack drives gears ii, four, and vi.[two] Instead of a standard big dry out single-plate clutch, each clutch pack for the half dozen-speed DSG is a drove of four pocket-size moisture interleaved clutch plates (like to a motorcycle wet multi-plate clutch). Due to infinite constraints, the two clutch assemblies are concentric, and the shafts within the gearbox are hollow and also concentric.[iv] Because the alternate clutch pack's gear-sets tin can be pre-selected[2] [4] (predictive shifts enabled via the unloaded section of the gearbox), un-powered fourth dimension while shifting is avoided[ii] [4] because the transmission of torque is simply switched from ane clutch-pack to the other.[two] While the DSG has 1 of the fastest shift times on the market, the claim that the DSG takes only about 8 milliseconds to upshift is un-proven with 3-party data nor claimed by the manufacturer.

DSG controls [edit]

The straight-shift gearbox uses a floor-mounted transmission shift lever, very similar to that of a conventional automatic manual.[9] The lever is operated in a straight 'fore and aft' aeroplane (without whatsoever 'dog-leg' offset movements), and uses an additional button to help foreclose an inadvertent choice of an inappropriate shift lever position.

P [edit]

P position of the floor-mounted gear shift lever means that the manual is set in park. Both clutch packs are fully disengaged, all gear-sets are disengaged, and a solid mechanical transmission lock is applied to the crown wheel of the DSG's internal differential. This position must only exist used when the motor vehicle is stationary. Furthermore, this is the position which must be fix on the shift lever earlier the vehicle ignition key tin can be removed.

N [edit]

N position of the floor-mounted shift lever means that the transmission is in neutral. Like to P above, both clutch packs and all gear-sets are fully disengaged; however, the parking lock is as well disengaged.

D mode [edit]

Whilst the motor vehicle is stationary and in neutral (N), the driver can select D for drive (after first pressing the foot brake pedal). The transmission's outer clutch K2 engages at the get-go of the bite point, while on the alternate gear shaft the reverse gear clutch K1 is also selected.[2] [3] The clutch pack for second gear (K2) gets ready to engage. When the driver releases the restriction pedal, the K2 clutch clamping strength is increased, allowing the transmission to drive the wheels. Depressing the accelerator pedal engages the clutch and causes an increase of forward vehicle speed. Pressing the throttle pedal to the floor (hard acceleration) will cause the gearbox to "kick downwards" to first gear to provide the acceleration associated with beginning, although there volition be a slight hesitation while the gearbox deselects second gear and selects first gear. As the vehicle accelerates, the manual's figurer determines when the second gear (which is connected to the second clutch) should exist fully used. Depending on the vehicle speed and amount of engine power being requested by the commuter (determined by the position of the throttle pedal), the DSG and so upward-shifts. During this sequence, the DSG disengages the beginning outer clutch whilst simultaneously engaging the 2d inner clutch[2] [3] (all power from the engine is now going through the second shaft), thus completing the shift sequence. This sequence in a fraction of a 2d (aided past pre-selection), and can be performed without lifting off the throttle, resulting in minimal power loss.[two]

Once the vehicle has completed the shift to second gear, the first gear is immediately de-selected, and third gear is pre-selected.[2] [3] Once the time comes to shift into 3rd, the second clutch disengages and the get-go clutch re-engages.[2] This sequence repeats through the gear changes.

Downshifting is similar to upwardly-shifting but in reverse club. At 600 milliseconds downshifting is necessarily slower, due to the engine's Electronic Control Unit of measurement (ECU) needing to 'blip' the throttle then that the engine crankshaft speed can match the appropriate gear shaft speed.[2] A downshift occurs when the ECU senses the motorcar slowing down, or when more than power is required.

The bodily shift points are adamant past the DSG'southward transmission ECU, which controls a hydro-mechanical unit.[2] The transmission ECU, combined with the hydro-mechanical unit, are collectively called a mechatronics [2] unit or module. Because the DSG'due south ECU uses fuzzy logic, the functioning of the DSG is said to be adaptive;[ dubious – discuss ] that is, the DSG volition "learn" how the user drives the motorcar, and will progressively tailor the shift points accordingly to suit the habits of the driver.[ citation needed ]

In the vehicle instrument display, between the speedometer and tachometer, the available shift-lever positions are shown, the current position of the shift-lever is highlighted (emboldened), and the electric current gear ratio in employ is also displayed as a number.

Under "normal", progressive and linear acceleration and deceleration, the DSG shifts in a sequential manner; i.e., under acceleration: 1st → 2d → 3rd → 4th → 5th → 6th, and the same sequence reversed for deceleration. However, the DSG tin also skip the normal sequential method, by missing gears, and shift two or more gears.[three] This is near apparent if the motorcar is being driven at sedate speeds in ane of the higher gears with a light throttle opening, and the accelerator pedal is so pressed downwardly, engaging the kick-downward function. During kick-down, the DSG will skip gears,[ix] shifting directly to the most appropriate gear depending on speed and throttle opening. This kick-down may be engaged by whatsoever increased accelerator pedal opening, and is completely independent of the additional resistance to be found when the pedal is pressed fully to the floor, which will actuate a like boot-down role when in Manual operation mode. The 7-speed unit in the 2007 Audi variants will not automatically shift to sixth gear; rather, it stays at 5th to keep power available at a high RPM while cruising.[ citation needed ]

When the flooring-mounted gear selector lever is in position D, the DSG works in fully automatic mode,[three] [4] with emphasis placed on gear shifts programmed to deliver maximum fuel economy.[iii] [ix] That ways that shifts will change upwardly and down very early in the rev-range. Equally an instance, on the Volkswagen Golf Mk5 GTI, sixth gear volition be engaged around 52 km/h (32 mph), when initially using the DSG transmission with the default ECU adaptation; although with an "aggressive" or "sporty" driving fashion, the adaptive shift pattern will increase the vehicle speed at which sixth gear engages.

S mode [edit]

The floor selector lever too has an South position.[two] When Southward is selected, sport way[2] is activated in the DSG. Sport mode still functions as a fully automatic mode,[3] identical in operation to D fashion, but upshifts and downshifts are made much above the engine rev-range.[ii] [3] [ix] This aids a more sporty driving mode,[2] past utilising considerably more of the available engine power, and also maximising engine braking. However, this mode does accept a detrimental upshot on the vehicle fuel consumption, when compared to D mode. This mode may not be ideal to use when wanting to drive in a sedate manner; nor when road conditions are very glace, due to ice, snow or torrential rain – because loss of tire traction may exist experienced (bicycle spin during acceleration, and may also issue in road wheel locking during downshifts at high engine rpms under closed throttle). On 4motion or quattro-equipped vehicles this may exist partially get-go by the drivetrain maintaining total-time date of the rear differential in South mode, so power distribution under loss of front-wheel traction may be marginally improved.

Southward is highlighted in the instrument display, and similar D mode, the currently used gear ratio is likewise displayed as a number.

R [edit]

R position of the flooring-mounted shift lever means that the transmission is in opposite. This functions in a similar style to D, but there is only one contrary gear. When selected, R is highlighted in the instrument display.

Manual mode [edit]

Additionally, the floor shift lever also has another airplane of functioning, for transmission [3] [4] mode, with spring-loaded + and − positions. This plane is selected by moving the stick away from the driver (in vehicles with the driver's seat on the right, the lever is pushed to the left, and in left-hand drive cars, the stick is pushed to the right) when in D mode only. When this aeroplane is selected, the DSG can now be controlled similar a transmission gearbox, albeit only under a sequential shift pattern.

In about (VW) applications, the readout in the instrument display changes to 6 5 4 iii 2 i, and simply like the automatic modes, the currently used gear ratio is highlighted or emboldened. In other versions (eastward.g., on the Audi TT) the display shows merely M followed by the gear currently selected; eastward.g., M1, M2, etc.

To change upward a gear, the lever is pushed forrard (against a spring pressure) towards the +, and to change down, the lever is pulled rearward towards the −. The DSG transmission can now exist operated with the gear changes being (primarily) determined by the driver. This method of operation is commonly chosen tiptronic.[2] In the interests of engine preservation, when accelerating in Manual/tiptronic mode, the DSG volition even so automatically change upwardly merely before the redline, and when decelerating, it will change down automatically at very low revs, only before the engine idle speed (tickover). Furthermore, if the commuter calls for a gear when it is not appropriate (e.k., requesting a downshift when engine speed is near the redline) the DSG will non alter to the driver's requested gear.[iii]

Current variants of the DSG will still downshift to the lowest possible gear ratio when the kick-downward push button is activated during total throttle whilst in manual mode. In Manual mode this boot-downwardly is only activated by an boosted button at the bottom of the accelerator pedal travel; unless this is pressed the DSG volition not downshift, and will just perform a full-throttle dispatch in whatever gear was previously being utilised.

Paddle shifters [edit]

Initially[ when? ] bachelor on certain[ example needed ] high-powered[ quantify ] cars, and those with a "sporty"[ further caption needed ] trim level—such equally those using the 2.0 T FSI and three.ii/3.6 VR6 engines[2]—steering cycle-mounted paddle shifters [3] [4] were available. Withal, these are now being offered (either equally a standard inclusive fitment, or as a mill optional extra) on virtually all DSG-equipped cars, throughout all model ranges, including bottom power output applications, such as the 105 PS Volkswagen Golf Plus.[9]

These operate in an identical mode as the floor mounted shift lever when it is placed beyond the gate in manual mode. The paddle shifters have two distinct advantages: the driver tin safely go on both hands on the steering wheel when using the Manual/tiptronic mode; and the driver can temporarily manually override either of the automatic programmes (D or S),[9] and proceeds instant transmission control of the DSG manual[9] (within the above described constraints).

If the paddle-shift activated manual override of one of the automated modes (D or S) is used intermittently the DSG manual will default back to the previously selected automated style after a predetermined duration of inactivity of the paddles, or when the vehicle becomes stationary. Alternatively, should the driver wish to immediately revert to fully automatic control, this can be done by activating and holding the + paddle[9] for at least two seconds.

Advantages and disadvantages [edit]

Advantages [edit]

  • Better fuel economic system[2] [five] (up to 15% improvement) than conventional planetary geared automatic manual (due to lower parasitic losses from oil churning)[4] and for some models with manual transmissions;[two]
  • No loss of torque through the transmission from the engine to the driving wheels during upwardly-shifts;[2] [iv]
  • Short up-shift time when shifting to a gear the alternating gear shaft has preselected;
  • Shine gear-shift operations;[4]
  • Consistent downward-shift fourth dimension of 600 milliseconds, regardless of throttle or operational way;

Disadvantages [edit]

  • The clutch pack mechanisms have a limited lifespan;
  • Marginally worse mechanical efficiency compared to a conventional manual transmission, peculiarly on wet-clutch variants due to electronics and hydraulic systems;[4]
  • Expensive specialist transmission fluids/lubricants with dedicated additives are required, which need regular changes;[fourteen] [fifteen]
  • Relatively expensive to manufacture,[ commendation needed ] and therefore increases new vehicle buy price;
  • Relatively lengthy shift time when shifting to a gear ratio which the transmission control unit did non anticipate (around 1100 ms, depending on the state of affairs);[27]
  • Torque handling capability constraints impose a limit on subsequently-marketplace engine tuning modifications (though many tuners and users may exceed the official torque limits notwithstanding); (Later variants accept been fitted to more than powerful cars, such as the 300 bhp/350 Nm VW R36 and the 272 bhp/350 Nm Audi TTS.)
  • Heavier than a comparable Getrag conventional manual manual (75 kg (165 lb) vs. 47.5 kg (105 lb));

Applications [edit]

Volkswagen Group vehicles with the DSG gearbox include:[seven]

Audi [edit]

Later on originally using the DSG moniker, Audi later renamed their directly-shift gearbox to S tronic.

  • Audi TT
  • Audi A1
  • Audi A3
  • Audi S3
  • Audi A4 (B8)[half dozen] [13]
  • Audi A4 (B9)
  • Audi S4 (B8)[6] [13]
  • Audi S5 (B8)[6] [xiii]
  • Audi A5
  • Audi A6
  • Audi S6 (C7)
  • Audi A7
  • Audi A8 (D4)
  • Audi Q2
  • Audi Q3
  • Audi Q5[6] [xiii]
  • Audi R8 facelift

Bugatti [edit]

  • Bugatti Veyron EB xvi.4[v] (developed past Ricardo[28] rather than Borg Warner)
  • Bugatti Chiron[29]

Lamborghini [edit]

  • Lamborghini Huracan

SEAT [edit]

  • SEAT Ibiza
  • SEAT Arona
  • SEAT León
  • SEAT Altea
  • SEAT Toledo
  • SEAT Alhambra
  • SEAT Ateca
  • SEAT Tarraco

Škoda [edit]

  • Škoda Fabia
  • Škoda Kodiaq
  • Škoda Karoq (in Australia it replaced with 8-speed sourced from Aisin)
  • Škoda Kamiq (except China market)
  • Škoda Octavia
  • Škoda Rapid (2012)
  • Škoda Roomster
  • Škoda Superb (MK2 & MK3)
  • Škoda Yeti
  • Škoda Scala
  • Škoda Kushaq
  • Škoda Slavia

Volkswagen Passenger Cars [edit]

  • Volkswagen Vento
  • Volkswagen Santana
  • Volkswagen Bora (China)
  • Volkswagen Polo (paired with six-speed TC automatic in some markets)
  • Volkswagen Virtus
  • Volkswagen Golf, GTI, GTD, GTE, TDI, R32, R[two] [five]
  • Volkswagen Jetta (TDI and GLI)
  • Volkswagen Eos
  • Volkswagen Touran[v]
  • Volkswagen New Beetle
  • Volkswagen Lamando
  • Volkswagen Passat and Passat (NMS) (Prc & US start generation)
  • Volkswagen CC
  • Volkswagen Arteon (except US market)
  • Volkswagen Sharan
  • Volkswagen Viloran
  • Volkswagen Scirocco
  • Volkswagen T-Cross
  • Volkswagen T-Roc
  • Volkswagen Taigun
  • Volkswagen Taos (China FWD & US AWD)
  • Volkswagen Tayron
  • Volkswagen Tiguan (except U.s. market place)
  • Volkswagen Teramont (People's republic of china)

Volkswagen Commercial Vehicles [edit]

  • Volkswagen Caddy motorcar-derived van
  • Volkswagen Transporter (T5 & T6)

Problems and recalls of DSG-equipped vehicles [edit]

The 7-speed DQ200 and six-speed DQ250 gearboxes sometimes suffer from ability-loss (gear disengaging) due to short-circuiting of wires acquired past a build-up of sulphur in the transmission oil.[30]

United states of america [edit]

In Baronial 2009, Volkswagen of America issued two recalls of DSG-equipped vehicles. The first involved 13,500 vehicles,[31] and was to address unplanned shifts to the neutral gear,[31] while the second involved similar bug (past then attributed to faulty temperature sensors) and applied to 53,300 vehicles.[31] [32] [33] These recalls arose as a consequence of investigations carried out by the Usa National Highway Traffic Safety Administration (NHTSA),[34] where owners reported to the NHTSA a loss of power whilst driving.[31] This investigation preliminary found simply 2008 and 2009 model year vehicles as beingness affected.[31] [34]

Australia [edit]

In November 2009, Volkswagen recalled certain Golf, Jetta, EOS, Passat & Caddy models equipped with 6-speed DQ250 DSG transmission considering the gearbox may read the clutch temperature incorrectly, which leads to clutch protection way, causing a loss of power.[35]

China [edit]

Since 2009 there have been widespread concerns from Chinese consumers especially among the online community, who expressed that Volkswagen has failed to reply to complaints about defects in its DSG-equipped vehicles. Typical issues associated with six-speed DSG include abnormal noise and inability to change gear; while issues associated with 7-speed DSG include aberrant racket, excessive shift daze, abnormal increment in engine RPM, flashing gear indicator on the dashboard as well as inability to shift to fifty-fifty-numbered gears.[ citation needed ] In March 2012 China'south quality watchdog the General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ) said that it had been in contact with Volkswagen (Red china) and urged the carmaker to probe the issues.[36] [37] In a survey held by Gasgoo.com (People's republic of china) of 2,937 manufacture experts and insiders, 83% of respondents believed that the carmaker should consider a full vehicle recollect.[38] In March 2012 Volkswagen Group China admitted that there could be an outcome in its seven-speed DSG gearboxes that may affect approximately 500,000 vehicles from its various subsidiaries in Mainland china.[39] A software upgrade has since been offered for the affected vehicles in an attempt to repair the problem.

According to 163.com - i of Prc'southward nigh popular spider web portals - in March 2012 most a quarter of the complaints nearly problems found in cars in Communist china's automotive market were made against DSG-equipped vehicles manufactured past Volkswagen.[40] The top v models that dominate those complaints were:

  • Volkswagen Magotan - 6%
  • Volkswagen Bora - 5.3%
  • Volkswagen Sagitar - 5.3%
  • Volkswagen Touareg - iv.7%
  • Volkswagen Golf - 4%

Would be worth noting that Touareg has never been fitted with a DSG transmission.

On 15 March 2013, Red china Central Television aired a program for the World Consumer Rights Day. The program criticized the issue associated with DSG-equipped vehicles manufactured by Volkswagen. On 17 March 2013 Volkswagen Group China announced on its official Weibo that it will voluntarily remember vehicles equipped with DSG boxes.[41] Some sources take estimated the failure rate of DSG-equipped vehicles sold in China to be greater than 20,000 per million sold.[ commendation needed ]

Sweden [edit]

VW Sweden stopped selling the Passat EcoFuel DSG as a taxi after many cars had problems with the 7 speed DSG gearbox. They instead offered the Touran EcoFuel DSG, which uses an updated version of the same DSG gearbox.[42]

Nihon [edit]

The recall has been extended to Nihon with 91,000 (VW and Audi using the aforementioned DSG) beingness recalled.[43]

Malaysia [edit]

xiii days after the Singapore call up, Volkswagen Malaysia also announced a recall for the 7-speed DSG. No official statement was released by the company, but it was stated that a full of 3,962 were involved in the unit recall practise - units produced between June 2010 and June 2011, with affected vehicles being Golf, Polo, Scirocco, Cantankerous Touran, Passat and Jetta models equipped with the manual.[44]

Australian recall [edit]

15 October 2019, Australia call up of DSG 7-speed gearboxes. Due to a production fault, over time a crack in the transmissions pressure accumulator tin occur. If the pressure accumulator cracks, oil and pressure is lost in the hydraulic arrangement of the gearbox. As a result, the transmission of engine power via the gearbox is interrupted. The experience of this symptom would be comparable to depressing the clutch in a vehicle fitted with a manual transmission. This could increment the likelihood of an accident affecting the occupants of the vehicle and other road users.[45]

See also [edit]

  • Listing of ZF transmissions
  • List of Aisin transmissions
  • Listing of GM transmissions
  • List of Ford transmissions
  • Automated transmission manual

References [edit]

  1. ^ Volkswagen Service Training Transmission 308 - 02E 6-speed DSG
  2. ^ a b c d e f g h i j k l m n o p q r southward t u five w 10 y z aa ab air conditioning ad ae af ag ah ai aj ak al "Volkswagen DSG - World'due south kickoff dual-clutch gearbox in a product car". Volkswagen-Media-Services.com (Press release). Volkswagen Group / Volkswagen AG. 22 November 2002. Archived from the original on 24 May 2006. Retrieved xxx October 2009.
  3. ^ a b c d e f g h i j k l m "Twin Clutch / Straight Shift Gearbox (DSG) - What it is, how it works". Cars.Well-nigh.com . Retrieved 27 October 2009.
  4. ^ a b c d e f m h i j k l thousand n "How the Dual Clutch Manual Works". DCTfacts.com. The Lubrizol Corporation. 2009. Archived from the original on 17 September 2009. Retrieved 27 October 2009.
  5. ^ a b c d e f thousand h i j k 50 thou north o "The 7-speed DSG - the intelligent automatic gearbox from Volkswagen". VolkswagenAG.com. Volkswagen Group / Volkswagen AG. 21 January 2008. Archived from the original on sixteen Dec 2010. Retrieved 3 Nov 2009.
  6. ^ a b c d e f g h i j k l m due north "Volkswagen Grouping extends accomplish of dual clutch transmissions". DCTfacts.com. The Lubrizol Corporation. 8 May 2009. Archived from the original on iv November 2009. Retrieved 27 October 2009.
  7. ^ a b c d e ETKA[ description needed ]
  8. ^ Volkswagen Service Grooming Transmission 390 - 0AM seven-speed DSG
  9. ^ a b c d e f g h i j k l grand "Golf Plus on the Road". DCTfacts.com. The Lubrizol Corporation. 2009. Archived from the original on seven October 2011. Retrieved 28 October 2009.
  10. ^ "LuK Dual Dry Clutch seven-Speed DSG Gearbox in volume product at Volkswagen". LuKclutch.com. Schaeffler Group USA Inc., BÜHL, Deutschland. 13 February 2008. Retrieved 27 October 2009. [ dead link ]
  11. ^ "Archived copy". Archived from the original on 17 September 2014. Retrieved 25 July 2014. {{cite spider web}}: CS1 maint: archived re-create equally title (link)
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External links [edit]

  • Dual Clutch Manual - DCT Facts (not implemented nevertheless)

Official links [edit]

  • Volkswagen AG corporate website

Independent links [edit]

  • Pictures and diagrams of DQ250 DSG at WorldCarFans.com.
  • Reviews, videos, and explanation of DSG transmission
  • First Drive: Audi TT 3.2 DSG review at VWvortex.com.
  • European involvement in dual clutch technology shifts up a gear, an informative article from Merely-Automobile.com.
  • Figurer-controlled Meccano model of a DSG Transmission by Alan Wenbourne of the Southward East London Meccano Order (SELMEC).
  • Video of Alan Wenbourne's Meccano DSG in operation at YouTube.com.

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