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Bumpety bump bump... [copied from other post]

As the originator of this thread, I tought I'd post an update.

Today I fitted a new MAF

What a difference.

Cleaning may provide a minor but shortlived improvement but if your using your car daily the deterioration will be gradual and you won't really notice.

What promted me to change it was my really bad fuel consumption, I was struggling to break the 50mpg barrier, so something was really really wrong.

Fitted the exchange unit in the car park of my local dealer and the difference is incredible.

MY ADVICE NOW IS TO BITE THE BULLET AND SIMPLY REPLACE IT, DON'T BOTHER CLEANING IT, JUST CHANGE IT. IF YOU GET THE FLAT SPOT / YOU THINK YOUR PERFORMANCE ISN'T WHAT IT SHOULD BE / YOUR MPG HAS DROPPED. GET THE CAR READ FOR FAULTS, IF NONE SHOWN (MINE DIDN'T HAVE ANY) AND YOU HAVE THE SYMPTOMS I'VE JUST DESCRIBED THEN CHANGE YOUR MAF.
 

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Getting the car serviced on Wednesday, how much extra would it cost to get a new MAF fitted at the same time? (he charges ?38 p/h)
Shouldn't cost much, it's a five minute job to change the MAF. It's an easy DIY job. The MAF itself costs approx ?70 iirc.
 

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I found a box of security bits to unscrew the MAF at ASDA ?2.97. You also get lots of bits that you will probably never use. Alternatively you can unsrcew the jubilee and the two philips that screw into the airbox, you will need to squirt ECC through the plastic gauze of the housing, you will do exactly the same job and save ?2.97 wow!.
 

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very useful post, i dont think my mpg is what it should be but dont really wana give the delaer ?50+ to check for faults is there any other way of finding out, what about swapping with anther 1 mates got a tdi golf are they all the same or different, but to me it doesnt seem like its losing power, but to be fair its my first performance diesel

thanks
 

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Dealer told me I needed a new MAF (though they didn't seem 100% sure) but you've inspired me to try cleaning it first, thanks a lot for that. One thing I can't find mentioned elsewhere, I currently get the amber engine warning showing while driving, if I do fix the MAF (by clean or replace) will this warning go out or do I need to find someone with vag-com to clear the fault code?

Thanks,

Mike.
 
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