EGR valve/ Glo-plugs

[Bazman]

Hi there,

I have a golf mk 5 GT TDI.

I recently had the engine warming light come on and the message about emissions workshop.
Now the mechanic has had a look and says it needs a new EGR valve and glow-plugs which looks like it's gonna cost circa £700 all in!

Thing is the car runs 100% fine there are no symptoms what so ever. (Well there is one actually: after start up on a very cold day there is a very faint wiff of exhaust fumes right after start up but it disappears almost immediately and is only in sub-zero conditions.)

£700 seems a lot to repair a car that is running perfectly?

http://www.mk5golfgti.co.uk/forum/index.php/topic,72241.0.html

From the above it seems that the EGR valve is not critical, and as I am not experiencing any problems so I don't need to delete pipe either.

Can I just leave the EGR in place?
If so should I have anything else done like have it mapped out of the engine control system?

TBH the glow plugs appear to be working fine too, but that is a secondary issue cost wise.
 
Thanks Baz

[Andy]

My egr is still in place but been mapped out and also the egr cooler removed

[Bazman]

Thanks Maxitrol,

Is is strictly necessary to remove the EGR cooler? Can I just map EGR out and leave everything in placve?
How much was the ECR cooler removal?

Like I say car is completely symptom free so really don't inclined to spend huge amounts.

[Matto]

Do you know what faults you were getting? ASV's are quite a common failure also.

[OSB]

The ERG went on my wifes mk6 TDI - lots of lights and went into limp mode. You'll know when it happens!
Had to be fixed quick and went VW (local indys were not really interested) cost £1600.... Ouch!

[Andy]

You can leave the cooler in place and map the egr out as mine was like that for a while

[Bazman]

Hi Matto, I had it looked over by the local indy vw specialist and he recon's it's the EGR, and glow plugs.

Given car is symptom free, mapping out seems to be the best option.
Just want to check that by doing this I won't harm my engine and give myself a bigger bill later. Given it's non-critical I assume it should be OK but just want to double check.

[kiwigolf]

Hi guys, I'm new to the UK (London) and I have just purchased a MK5 Golf 2.0 TDI a few days ago and just this morning the engine light came on with the same 'Emissions Workshop' warning. I've been reading that I should get it read with a Vagcom to get the fault code but I don't know any local garages in SW who can do it, so can anyone recommend any good places? And from what I've been reading mapping it out like Bazman is thinking, maybe the best option? Cheers in advance

[Andy]

Hi guys, I'm new to the UK (London) and I have just purchased a MK5 Golf 2.0 TDI a few days ago and just this morning the engine light came on with the same 'Emissions Workshop' warning. I've been reading that I should get it read with a Vagcom to get the fault code but I don't know any local garages in SW who can do it, so can anyone recommend any good places? And from what I've been reading mapping it out like Bazman is thinking, maybe the best option? Cheers in advance

You would be best putting your question in the correct section as members will see and answer you better

[Matto]

Hi Matto, I had it looked over by the local indy vw specialist and he recon's it's the EGR, and glow plugs.

Given car is symptom free, mapping out seems to be the best option.
Just want to check that by doing this I won't harm my engine and give myself a bigger bill later. Given it's non-critical I assume it should be OK but just want to double check.

There is not one good reason to have an EGR fitted. Get rid haha.

[Andy]

Yeah as matt says get rid of it

[jettamike]

Out of interest chaps, does getting the EGR valve blanked/mapped out make the car more responsive in throttle positions that would normally allow the egr valve to be open? I've had a few diesels in the last few years, all have had the egr valve apart from my first two cars (old 306 xudt based ).

Thanks :)

[Andy]

It does seem to but not sure if that was me imaging things

[jettamike]

The mrs has a Mk1 Octavia TDI and has just had to have a replacement turbo after many cleaning sessions thanks to her having completely the wrong car for her usage. The garage blanked it off as they said it should help a little bit? Hasn't thrown up an EML yet but I assume the ECU in the mk5 onwards is slightly more intelligent and will do unless its mapped out?

[Andy]

It needs the eml light mapping out like mine did