My 2013 Octavia Mk3 1.4TSI @32k miles is intermittently showing the EPC warning and going into limp mode. If I stop / start the engine the EPC is cleared and car drives fine for say 5 to 10 mins., then the warning re appears. The code reader I have (AD410) shows P00AF with the description Turbocharger / Supercharger boost control A module performance.

 

I am hoping its not the turbo itself, could it just be the boost solenoid? I plan to take the vehicle in to my nearest independent asap but wanted to get some idea of likely causes before I go.

 

Ta

I assume the vehicle is now out of warranty? Do you have extended warranty? 

Definately take it into a dealer. If it turns out to be the Turbo it’s not cheap (if it’s had dealership history not specific to that one dealership) ask if there’s any manufacturers goodwill (will help with the repair if it’s a lot) 

sorry cant give you anything to go on with the car though. 

37 minutes ago, Madmax889 said:

I assume the vehicle is now out of warranty? Do you have extended warranty? 

Definately take it into a dealer. If it turns out to be the Turbo it’s not cheap (if it’s had dealership history not specific to that one dealership) ask if there’s any manufacturers goodwill (will help with the repair if it’s a lot) 

sorry cant give you anything to go on with the car though. 

My extended warranty ran out Nov 17

This is exactly what happened to mine, Keith.

 

In my case the problem was not the turbo but the wastegate actuator - a rod which operates the wastegate valve via a pivot. The rod got stuck in the ‘in’ position, leaving the wastegate permanently open, hence no boost pressure. Normally, the dealer will replace the wastegate actuator assembly, and fingers-crossed that’s all it takes.

 

In my case, the rod could not be pulled out of the wastegate and the entire turbo asembly had to be replaced. Luckily for me, it happened 2 weeks before the manufacturer warranty expired. It’s a pricy item (£1500 odd I think), so if it is that kind of failure a full Skoda service history helps with any claim for goodwill.

 

My sense is that this is a known problem on earier engines. It relates to the way the actuator is lubricated. However, I’m not aware of either a recall or technical service bulletin.

 

I’d emphasise that this isn’t the only cause of the situation you’re describing and limp home can be triggered by a number of different issues. Problems with the throttle mechanism (which is electronic rather than mechanical) can also cause it.

Edited 31 March, 20188 yr by MorrisOx

Good that there is no Supercharger so that is not a concern.

 

See the Turbo actuator threads for 1.2 TSI's in the Fabia M2 section just this week. 

Then in the Yeti Section.  1.2 Turbo and Actuators replaced under warranty on a 2016 car.

 

There are how to guides on the actuator, bad sadly that can just be a temp fix.

http://briskoda.net/forums/topic/441816-2013-12tsi-turbo-fault 

Edited 31 March, 20188 yr by AwaoffSki

Missus's Ibiza 1.2 TSI is in the dealer's now with the same problem. Dealer told me they've replaced the WG actuator, and it's still giving errors, so they're replacing the whole turbo now. Which'll take another week... It's a known problem - all the other VW forums have reported the issue, so it seems like it's a fault endemic to those engines.

 

You could argue the warranty case, as in my mind this should've been a recall. Dealer may put something towards it for you if you've got a good relationship with them...

Edited 31 March, 20188 yr by mumphie
Missing words

The Wastegate actuator failed on our Mk2 Octy 1.2TSi at 30k miles.

 

Had it changed at an independent for £180. They gave me the old one back and it was siezed solid.

 

Been OK since.

 

Lee

 

 

Edited 31 March, 20188 yr by logiclee

28 minutes ago, logiclee said:

The Wastegate actuator failed on our Mk2 Octy 1.2TSi at 30k miles.

 

Had it changed at an independent for £180. They gave me the old one back and it was siezed solid.

 

Been OK since.

 

Lee

 

 

Well thanks guys. never heard of a Wastegate but I have now. Its going to a local independent garage as soon as I can arrange it.

12 minutes ago, KeithJR said:

Well thanks guys. never heard of a Wastegate but I have now. Its going to a local independent garage as soon as I can arrange it.

 

If you think of a turbocharger as a pressure pump, the wastegate prevents the pressure getting too high by opening a valve at certain pressures. The actuator is the mechanism that opens the valve.

So, assuming it is a problem with the Wastegate, either the Wastgate itself is gunged up and sticking, or the actuator is failing to operate it. Hopefully a competent mechanic could diagnose which bit is causing the problem?

It’s usually the actuator/wastegate. The failure of the turbo itself (two bladed compressors either end of a bearing) would be mechanically disastrous & potentially massively expensive. Doesn’t sound for a moment like that’s what has happened to you.

I believe the wastegate is a non-serviceable part, thus if it's failed, the whole turbo needs to be replaced. If it's just the actuator, you may be in luck!

31 minutes ago, mumphie said:

I believe the wastegate is a non-serviceable part, thus if it's failed, the whole turbo needs to be replaced. If it's just the actuator, you may be in luck!

 

Yep, if the actuator rod gets stuck in the wastegate it’s curtains for the whole turbo.

Just had a look under the bonnet and am wondering where to look for the 'actuator rod' ? The photo below is from the Golf forum but would assume the engine is the same.

Perhaps it may be to the rear and I'm looking from the front?

I didn't think I was that stupid but maybe the wife is right after all......

The turbo is on the back of the engine on the 1.4TSI.

Thanks, it was tipping it down when I had a quick look today, I will wait for a better day and have another go.......

It's 3 years old and only done 12k (Mostly) careful miles.

On ‎01‎/‎04‎/‎2018 at 16:22, ajw1100 said:

Just had a look under the bonnet and am wondering where to look for the 'actuator rod' ? The photo below is from the Golf forum but would assume the engine is the same.

Perhaps it may be to the rear and I'm looking from the front?

I didn't think I was that stupid but maybe the wife is right after all......

 

 

That's my picture from my thread which you should have linked to as it describes the problem with all the 1.2 & 1.4lt MQB VAG engines....

 

Basically they made the tolerances too tight on the pivot & you have a stainless steel pivot & a grey cast metal arm ....different thermal expansion rates....so the pivot point of the electronic servo actuator arm & the turbo "arm" for the wastegate seizes solid & I have see it snap the servo arm.....

 

There is NO TSB except grease with VW "hot bolt paste"........you have to use grey coloured high temp 1300C grease as other so called 1000C grease isn't & will bake on & cause the same problems...

 

 

ALL info in my thread here:-

 

http://www.golfmk7.com/forums/showthread.php?t=28690

 

 

Update on our situation - dealer rang up in Friday to update me on the repair.

 

Theywere expecting a new turbo to be with them by then, but they've now been told it won't be with them until the 21st. They'll have had the car for the best part of a month by then!

1 hour ago, mumphie said:

Update on our situation - dealer rang up in Friday to update me on the repair.

 

Theywere expecting a new turbo to be with them by then, but they've now been told it won't be with them until the 21st. They'll have had the car for the best part of a month by then!

Have they at least kept you mobile by S upplying you with another car?

11 minutes ago, Madmax889 said:

Have they at least kept you mobile by S upplying you with another car?

 

Only thanks to the SEAT breakdown cover!

On 31/03/2018 at 20:25, MorrisOx said:

It’s usually the actuator/wastegate. The failure of the turbo itself (two bladed compressors either end of a bearing) would be mechanically disastrous & potentially massively expensive. Doesn’t sound for a moment like that’s what has happened to you.

Well, my local garage is saying I need a new turbo. When I protested saying its only done 32k, they suggested running a turbo cleaner through. I am not convinced they really have diagnosed the fault. Anyway I am about to try some Revive cleaner (the petrol variant) as its a lot cheaper than £1500. Anyone tried it?

Got our Ibiza back the other day, behind the original date, but ahead of the revised date - working as good as new. New turbo installed - how long before this one seizes?!

On 13/04/2018 at 21:56, KeithJR said:

Well, my local garage is saying I need a new turbo. When I protested saying its only done 32k, they suggested running a turbo cleaner through. I am not convinced they really have diagnosed the fault. Anyway I am about to try some Revive cleaner (the petrol variant) as its a lot cheaper than £1500. Anyone tried it?

Taken it just  now to another independent who are  a bit more tech savvy. Straight away they diagnosed an actuator fault and quote me 400 tops to fix, depending whether the turbo has to come  off to allow  fitting. So it's booked  in next week

1 hour ago, KeithJR said:

Taken it just  now to another independent who are  a bit more tech savvy. Straight away they diagnosed an actuator fault and quote me 400 tops to fix, depending whether the turbo has to come  off to allow  fitting. So it's booked  in next week

 

Common problem on all VAG engines & defo on the EA211 1.4lt..

 

I created a "how to solve" guide on the MK7 Golf forum which another member on here linked to earlier in this thread...

 

The turbos are pretty strong in standard format on this engine..its the servo linkage which seizes & causes the actuator to fail...

So, if the actuator is replaced, does that come with a new linkage part, or does the repair include somehow fixing the seized bit?? Also my engine code starts CHPA. Is that a variant of EA211? I am confused by these codes. I have a printout of the "how to solve" guide.