Golf 118 TSI Engine Failures and Service Campaign 24S4

[ozgti]

Mine's a Jan 10 build and apparently needs the update as well.

[logger]

Getting my ECU reflash done in the next couple of days.
Anyone got any good suggestions as to to what I should record beforehand with VCDS, so as I can ascertain what has changed afterwards.

[parso_rex]

Getting my ECU reflash done in the next couple of days.
Anyone got any good suggestions as to to what I should record beforehand with VCDS, so as I can ascertain what has changed afterwards.

You can just log the usual load,rpm,throttle position, AFR,manifold pressure and timing parameters. The thing is you really need to log these things at differing loads as they may have only applied a fix to say a part throttle area and left the full throttle area alone. Where you have the transition between the two chargers happening is one place to look look as are the places where boost comes on and of course peak boost
Ideally you would keep a copy of your original file and then compare it with the recall version, you'd need to have some way of getting yourself a copy of that though. I can do the map comparisons but thats of little use to you down there.

[logger]

Should be able to grab mist of those and easy enough to save them to a file. I can record from 1 to 12 parameters simulataneously. Only issue is the more I grab the slower the sample rate. So might only be once very 2 secs with all 12 being logged.

I was thinking of grabbing:-

002,1,Engine Speed,(G28 ),Specification (Idle): 680...730 RPM
002,2,Engine Load
002,3,Injection Timing
002,4,Intake Manifold,Pressure (G71)
003,3,Throttle Valve Angle
003,4,Ignition,Timing Angle
112,1,Exhaust Gas,Temperature Bank 1
241,2,Boost Pressure,(actual)

Can you take a quick peek at tsi.txt and tell me what group will give Air Fuel Ratio?

Keep in mind I can only grab 12 at a time max.

[team_v]

So what happens to pepople who have got an aftermarket ecu tune?

Would the aftermarket tune prevent the engine failures as it has already been remapped for different variables?
Or would you have to get the dealer remap and then re-flash the ecu with the aftermarket tune again?

[logger]

Would the aftermarket tune prevent the engine failures as it has already been remapped for different variables?

Depends if the remap variables are in the regime that is effected, I would think. It is quite possible that they are not. It is possible that the VW fix changes stuff that an after market tune does not even deal with.

Or would you have to get the dealer remap and then re-flash the ecu with the aftermarket tune again?

Yes, thats the path I am intending to take.

[Transporter]

So what happens to people who have got an aftermarket ECU tune?
would you have to get the dealer remap and then re-flash the ECU with the aftermarket tune again?

IMO it is quite possible that aftermarket remap, chip or any mods could undo what VW attempted to fix. But that's only my opinion.

[Tim]

You would need to know exactly what the VW retune does to know for sure. You would think that most tuning companies would be looking at it pretty closely to make sure if they need to revise their maps they do.

Have their been any cars with aftermarket tunes suffer similar engine failures?

[Corey_R]

So what happens to pepople who have got an aftermarket ecu tune?

Would the aftermarket tune prevent the engine failures as it has already been remapped for different variables?
Or would you have to get the dealer remap and then re-flash the ecu with the aftermarket tune again?

Guy_H had this to say in relation to your question over here

Already had some APR cars that have had the factory reflash done, no problem to re do the APR with the updated VW specific code once you have had the VW work done!

[logger]

Which all ties in with the VW "fix" modifying something unrelated to what the tuners tune. Have just got myself an 10 minute Pre-fix log of numerous parameters. Cold start through to near max boost. Will be interesting to compare it with an afterwards log to see what, if any, changes are visible. I still have a hunch the issue is not where everyone around here is looking, and will report back if it turns out to be the case.

[cme2c]

Good Point, although you'd think they would only contact that batch of owners if that was the casel.. But might as well add it.

A few questions for those who had TSI engine failures:

How Many KMs?
Do you mainly do a lot of short trips?
Do you mainly do fewer longer trips?
Do you alway drive in a gentle manner?
Do you flog the car and give it a bit of a hiding from time to time?
Do you only use 98Ron fuel?
What is your car build date?

Perhaps it may be of interest to get these questions answered by those who haven't had a problem, like me. Not particularly scientific, but a control group of sorts. The Golf is mainly driven by my wife, whose most common workplace is about 4 kms from our place. We are in the northwestern suburbs of Sydney ( it was 1 degree outside this morning) so it gets cold starts. It goes in next Wednesday to be reprogrammed.

How Many KMs? 9000
Do you mainly do a lot of short trips? Yes
Do you mainly do fewer longer trips? No
Do you alway drive in a gentle manner? No
Do you flog the car and give it a bit of a hiding from time to time? Yes
Do you only use 98Ron fuel? Yes
What is your car build date? 07/09

[Transporter]

Since the fault happen in such a short time from new, I would also ask the question about how the engine was run in? But as logger said, who knows what causes it?

[Transporter]

You would need to know exactly what the VW retune does to know for sure. You would think that most tuning companies would be looking at it pretty closely to make sure if they need to revise their maps they do.
Have their been any cars with aftermarket tunes suffer similar engine failures?

I 100% agree with that and until they find out for sure what cause the pistons cracking, I wouldn't be very comfortable with retuning or using other than VW tune, because if someone would get the same problem again within the warranty, they (VW) could blame everything on the aftermarket tune and wipe their hands clean.

[Tim]

its all speculation at the minute. Be good to hear some accurate info to base opinions on.

[Transporter]

Yep, my speculation would be that it is a bad badge of pistons or pistons not suitable for application and VW fix (at least for now) is to downtune the engine a bit.