TFSi and S-Tronic

[bpsorrel]

Just a quick question - anyone had experience of Audi's 2.0 TFSI and S-Tronic (formerly DSG) gearbox? Good or bad...

(just researching an idea SWMBO has..)

 

[grumpyoldgit]

Avoid Multitronic boxes!

Multitronic Problems - Big Problems!

 

[DSM10000]

Avoid Multitronic boxes!

Multitronic Problems - Big Problems!

It is not a multitronic gearbox the OP asked about. The S tronic is derived from the DSG dual clutch gearbox.

Multitronic gearboxes are based on CVT technology and whilst early ones had high failure rates the latter ones were fitted with upgraded clutches.

 

[moonloops]

I have a 2.0 TFSI engine in my Audi (approx 330 bhp and 30 MPG day in day out)

I have a manual gearbox but should have gone for the DSG as they are great boxes in both auto and manual mode.

 

[DSM10000]

I have a 2.0 TFSI engine in my Audi (approx 330 bhp?????

A mis type?

 

[st4]

A mis type?

They're highly tunable.

I've driven a GTi Golf with the TFSi engine and DSG. 240bhp it made and a 2.0TDi golf with DSG.

For driving, there is no finer transmission money can buy. Reliability wise out of warranty I'd worry terribly but I think they are ok but if they go wrong its mega bucks (makes 7g mercs seem cheap).

The TFSi engine is quiet, powerful and in the MK V GTi golf EA8 something or other very reliable.

Lovely lovely drive train but wrong wheel drive puts me off it

 

[grober]

Some anecdotal evidence of heavy inlet flap / valve fouling on some AUDI direct injection petrol engine engines. Unlike the indirect "manifold injection" situation where the air /petrol mix " washes" the inlet system including the valves as it enters the engine direct petrol injection can bypass all this as it enters the cylinder. More evidence of this in the States where there are more petrol engines and lower quality fuels. Its one of the potential problems levelled at all direct injection petrol engines including MB's CGI system. New cylinder head design where direct injectors are partially directed at the inlet valves are said to combat this at the expense of efficient charge stratification. Otherwise the 4 cylinder AUDI Turbo petrols get good reviews with high torque developed low down and extending over a wide rpm range.

 

[Ian_Mac]

I loved the DSG box on my Scirocco, best of both worlds really.

Haven't heard horror stories relating to the box though I believe the 40k fluid change is very important.

 

[JimboDS]

Not experienced the engine or gearbox but curious about S Tronic.

How does DSG/S Tronic compare to a traditional auto in traffic? I've driven an automated manual MR2 which was early tech so more a novelty than serious box and also driven a GTR. The GTR twin clutch was great but no creep made smooth starts on hills tricky. Tight parking maneuvers were interesting too.

Does S Tronic creep like a traditional auto? Is it as smooth pulling away?

 

[st4]

Its smooth moving away, but doesn't really creep much and can roll back on hills so apply some power to balance it

 

[redbaron]

DSG is the 2nd best gearbox going.. (only the ZF 8sp eclipses it imho)

The 7 speeders in the newer TFSI cars are great... even the older 6sp boxes are great. Had them in golf GTI - mother has one in her current Superb and loves it.. Dad prefers that to the 7g in his soon to depart E.

The 8AT ZF box just seems a little smoother ( but only the BMW's / RR ) in the XF it seems to hunt... but that I suspect is jag software rather than any box issue.

 

[grober]

Starting and stopping are the S Tronic Achilles heel imho. The engagement/release of drive is controlled electronically from signals from many sensors e.g. the gearbox, accelerator and brake pedal and system can get flustered is it gets too many conflicting signals. Stories of people "coasting" around roundabouts while the system works out whether you want to slow down a bit more or accelerate away ? Straight road acceleration or gradual reduction of speed = [ reasonable time to work things out] yields smooth seamless almost imperceptible changes if the system is working correctly. Don't know what the state of the game is now but there used to be 2 main gearbox systems---- a 6 speed automatic box with twin wet concentric clutches [the original] and the later 7 speed box with twin dry concentric clutches used on the lower torque models. Not really up to speed on the latest incarnations.

 

[gunning]

we deal with DSG boxes all the time and they go wrong constantly. Avoid in my opinion. Even if you dont beat your cars they go wrong.

 

[Leec320]

Audi auto boxes

Got to be better than Merc 7 G tronic in all ways! By far the worst modern gearbox i have ever driven

 

[moonloops]

A mis type?

Revo stage 2 remap + miltek exhaust + induction kit. Also a sachs clutch as the standard S3 clutch is made of custard cream biscuits .

 

[grober]

Might be worth pointing out that the 7G-DCT 7-speed automatic boxes on the new A and B class and CLA are all triple shaft twin clutch type boxes.

Mercedes-Benz-Blog: The development of the Mercedes-Benz A-Class: The 7G-DCT gearbox - Dynamic and efficient

 

[shorty]

Ive a Multironic box in my A4 , its a piece of crap .The clutches slip when the car warms . I was gonna get them fixed but have since changed my mind , Im gonna drive it on till it dies , then il go back to a MB .

 

[thebook]

I've got a 3.0 S-tronic, so not exactly what you are asking about, but close.

I love it. Smooth but fast changes.

My one issue with my previous E350 CDI was the delay in pulling away, a noticeable wait from pressing accelerator to car moving, dangerous at times.

 

[DSM10000]

Ive a Multironic box in my A4 , its a piece of crap .The clutches slip when the car warms . I was gonna get them fixed but have since changed my mind , Im gonna drive it on till it dies , then il go back to a MB .

But as stated the OP is not asking about multitronic gearboxes, he is asking about s tronic

 

[bpsorrel]

I read today that post 2008 the 2.0 TFSI is chain driven so no need for the 50K cam belt change. Is that true?