mk5 2.0 TDI-High idling & fans continously running

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luckyh189
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Posts: 3
Registered for: 6 years 8 months

mk5 2.0 TDI-High idling & fans continously running

Post by luckyh189 »

Hi All,

I drive a '05 mk5 golf 2.0 Tdi with >500k kms. The engine idles high(just above 1k rpm) few seconds after starting engine, followed by both fans running at high speed. Had to replace both fans due to self-destruction. Found a small vaccum leak on the intermediate air hose pipe after the MAF sensor and the one leading to the turbo. I had the small hole plugged but the high idling and fans running continoulsy problem still persists. Does anyone know if this car has O2 sensors? i'm thinking that might be the problem. any advice will be appreciated.
Thanks
Lucky
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RebelGTI
Cadet
Posts: 66
Registered for: 6 years 1 month
Car Make: VW
Car Model: MK5 GTi

Re: mk5 2.0 TDI-High idling & fans continously running

Post by RebelGTI »

My fan is also always on. I were told its the temp sensor that was faulty, replaced that and guess what the fan was still on... So till today my car's fan is always on.
2007 MK5 GTI
Revo Stage 3
luckyh189
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Posts: 3
Registered for: 6 years 8 months

Re: mk5 2.0 TDI-High idling & fans continously running

Post by luckyh189 »

Hi RebelGTI, I forgot to mention that i replaced both temp sensors before my cooling fans packed up. dont know where to go from here.
VAG Fan
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Posts: 1440
Registered for: 8 years
Location: Pretoria

Re: mk5 2.0 TDI-High idling & fans continously running

Post by VAG Fan »

I would expect that a diagnostic read-out of fault codes and measurement blocks should provide the reason for the continuously running fans.
Mark R.
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2004 VW Golf TDI, type 1J, AHF, 317k (2016-current) --- daily
1990 VW Fox, type 16, HM, 304k (2005-current) --- spare runaround
Previous:
1992 Audi 500 SE, type C4, AAR (2001-2020) --- nice while it lasted
1983 VW Golf GTS, type 17, FR (1992-2005) --- most fun car I've ever had
1978 Audi 100 GLS 5E, type 43, WC (1991-92) --- died in the side of a Rekord who cut me off
- - - - - - - - - -
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