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Junior Member
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Discussion Starter · #1 ·
First of all, sorry for bringing this up again but I received no responses previously.:help:

I have an 05 2.5 TDI and when it's cold (engine) the idle is quite erratic and hunts.

I've had the car in to dealers and they can't find a fault. They did a software reflash and no improvement. They say there's nothing wrong.

I had to take the car back to the dealer I bought it from (different to above) and they said that it wasn't idling correctly but because they are not a luxury car dealer they don't have the software etc to investigate.

So I have a dealer with the right kit but without the basic engineering sense to recognise that the idle is all wrong. And another dealer who can tel it's wrong but can't fix it. :bashwall:

Anyone else had similiar troubles?

I'm thinking of doing a video of the car and sending it to VW.

I have to say, service from VW is the very worst I have experienced in 20 years. And, I've had an Alfa Romeo in the past !!

Looking forward to hearing your views
 

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Had a similar problem on my TD4 Freelander. It was a common fault and only needed a replacement Air Flow Meter.

A quick google search on "freelander erratic running" quickly found Skoda Octavia's "had a problem with ECU failures lead to erratic running and the engine cutting out", and Audi A3's "have Air flow sensors fail, leading to erratic running".

Good bet that these components are similar in design/manufacture to the Tregs given VW group like to use common parts.

My bet would be the Air Flow Meter, same as my Freelander, which was a BMW engine and probably the same supplier as VW (but thats just a guess)
 

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I thought i had a similar prob but after 5 mins warming up it sorted itself out, so just put it down to starting from cold.
 

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ross911rmk said:
I thought i had a similar prob but after 5 mins warming up it sorted itself out, so just put it down to starting from cold.
On odd occasions last winter I noticed the engine cycling (hunting) slightly - from memory this was c800-1000rpm - but only on the odd occasion


Like Ross, once the car was warm all was well - hasn't happened at all since February


I think Meld might have hit the nail on the head though with the airflow meter.....

Just my tuppence
 

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Discussion Starter · #5 ·
Wouldn't the Air Mass meter show a fault code?

Wouldn't the Air Mass meter hinder performance throughout the rev range?

Most importantly, shouldn't VW be able to find the problem? If only they could be arsed..

I want to get the car chipped and I can't do that until this matter is resolved.

Thanks for the replies guys
 

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leetouareg said:
Wouldn't the Air Mass meter show a fault code?
Not neccesarily - if faulty it might 'think' it was reading correctly.

Wouldn't the Air Mass meter hinder performance throughout the rev range?
Possibly - Freelander had a habit of cutting out at speed, but not all of them. Mine simply didnt want to go when cold, bit like having no choke.[/color]

Most importantly, shouldn't VW be able to find the problem? If only they could be arsed..
Nail....head !!!

I want to get the car chipped and I can't do that until this matter is resolved.
Agreed !!

Thanks for the replies guys
 

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Hi folks,

i have this problem,seems to have just started recently....engine hunts when cold and seems to me to be sluggish


feels fine when in the sport box !

tarra
 
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