Mk8 golf gti - P210100 fault code

[Rosco82]

Hi all very new here and a first time gti driver , had my car 1 year 2021 plate golf gti
Love my car , but on Friday car broke down and went into limp mode and will only run at 1500 rpm
Diagnostic machine is coming up with P210100 - throttle / engine speed control module , has anyone had any issues with this ? I’ll probably have to put car into vw but a bit scared on costs etc , unsure if this is something that could be fixed by an independent vw specialist ? Any advice greatly appreciated, I’m Glasgow based

[Carlosfandango]

That is a non manufacturer specific generic code I believe, so may be wise to scan with a professional tool, but could be due to the PCM control module seeing a difference between the throttle body butterfly and the actual throttle pedal position, possible carbon build up on the throttle body (unlikely if that age and not high mileage), or one of those parts being faulty!? Might be possible to carry out a throttle body reset/relearn basic setting procedure to the throttle body, but it is possible (although rare) to make things worse doing this if the butterfly has heavy carbon deposits. Could also simply be caused by a dirty or faulty MAP sensor, may be worth removing the map sensor and checking if it’s clean.

[fredgroves]

As with all of these things, its sensor driven fault detection.

Which could mean its a fault detected by the sensor or the sensor being faulty and reading it wrong 

I've not seen any car sensors having fault detection on them (like you see on more critical stuff like aircraft or nuclear power stations...) so they can and do often deliver false diagnostic info...

[Rosco82]

Hi guys thanks for info I had thought the map sensor or pcm after doing a bit of research online , car has went into vw this afternoon so I’ll wait to hear from them , just wanted my car back on the road , and performing as it should.
I’ll update more once I know what issue.

Golf gti mk8 dolphin grey metallic
19” Adelaide’s

[Rosco82]

So after sending car to vw on Friday I got the call today telling throttle valve needs replaced at a cost of £1256.00 , I have no choice but to proceed with required work , but what I will say is this may force my hand to sell car as it doesn’t fill me with confidence that a £30k car that rolled off the production line in may 2021 so is just 4 years old with 34,000 on the clock and needs a new throttle valve ??
Can only put this down to poor build quality or poor quality of parts either way it will definitely put me off buying another vw , as I expect better quality than this and really this is poor for a car of this standard
Not a happy camper 

[Exonian]

It’s one of those freak faults. I’d be apoplectic too.
VW issue a 5 year warranty in some countries and many in the UK go for an extended cover package.
It wouldn’t be unreasonable for you to ask for a goodwill contribution from VW so long as the servicing is 100% up to date and it doesn’t have stratospheric mileage.

[Rosco82]

It’s one of those freak faults. I’d be apoplectic too.
VW issue a 5 year warranty in some countries and many in the UK go for an extended cover package.
It wouldn’t be unreasonable for you to ask for a goodwill contribution from VW so long as the servicing is 100% up to date and it doesn’t have stratospheric mileage.

Not been on here in a while but just to advise vw unwilling to offer any goodwill gesture as far was out of 3 year warranty even though car has 3 services in 4 years at 36,000 miles , according to vw it’s not unknown for throttle valve to need replacing during life time of car , though 4 years is hardly a life time !
I had just about got over it when driving last week car went into limp mode 4000 rpm and said drive to work shop then overheat symbol appeared, pulled over lifted bonnet ( no gas strut appalling ) and water leaking from engine coolant bottle , let car cool added water to high continued to seep out bottle , car started and seemed to be running fine   But had to drive home pulling in every 5 mins making sure water level not too low , I’m really gutted as I love car but feel it’s been build hastily and a lot of cost cutting , I really feel I have no choice but to sell car and cut my losses , shame though I thought I’d own this car for years , someone tell me am I right to get shot or am I being silly , opinions please

[Ewankinch]

Have you had a price from an independent garage for the repair? Maybe once it's fixed take out a service plan with an extended warranty. I might do so once my warranty is out in 2 years time. I know how it feels when you get a big bill to fix a car. But once its fixed you'll be happy again. If you were to get rid you've got to calculate what it's going to cost to get something else. If you trade it in you'll loose a chunk of money and if you buy from a garage your paying a premium. It will probably cost you a few thousand to get something else.

[Rosco82]

I’ve already had throttle valve replaced at vw crow road Glasgow , car goes in on Monday and I don’t expect it to be major 4-500 including service but it’s more the not feeling I can rely on car , been quoted around 23-24 online valuation, thought about going back to an Audi ,a decent s3 similar age will be about 28 guess I need to think if I’m willing to pay a few more quid to be feel I can rely on car,

[Ewankinch]

The S3 has the ea888 engine that your Gti has. If reliability is your worry I think you need to look at a different manufacturer.