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My air con has been switching to econ mode intermittently for some time now but now its stuck completely and the pump wont engage at all. I went to moto save for a free gas check and the pressures are ok at 4 bar and 5 bar . The guy said he didn't think a re gas was the answer so the next...

Well I finally managed to fit the new tensioner and luckily I found some paint marks on the belt and pulleys. Lined up with these and bingo! shes running sweetly again.

I too had the dreaded water in the footwell problem which has been ongoing for years with many Audi and VW models. As an engineer I am of the opinion that the designers responsible should have long since been fired! It took about a month to get the car dry again and fortunately the control box...

Here the top covers are removed and I can see the tensioner

It looks like I can change the belt and tensioner from the top by removing the driver pulley? If so then the remaining questions are where are the timing marks and how do I physically turn the engine. ?

Thanks but I've found the problem today. The pump belt tensioner bolt has broken. My question now is can I fit a new one without removing the front end and how do I turn the engine to reset the timing?

Thanks but unfortunately it's not that simple as there's a good flow of fuel and no sign of bubbles. Also if that were the cause I don't think the engine would have stopped so suddenly and completely. There would sure be some mis firing and some sign of life when cranking? It is completely dead.

My 2005 Audi Quattro 2.5 tdi Auto was running perfectly when suddenly, at fairly high speed going uphill the engine cut out without warning. No hiccups, no misfiring , just stone dead. No warnings appeared on the dash though when I was trying to restart I saw the glow plug light flashing at...

No I haven't checked the fuel pump timing and frankly, I don't know how so I'll ask a mechanic friend tomorrow. I can't help thinking though that such a problem would affect the way the engine runs generally and, as I said, once it gets going it drives perfectly. No misfiring, very fast and...

The built in Sat-Nav of my 2005 Allroad began to crash (usually at a critical point in my journey!) and it reported "Disk cannot be read" . My first reaction was to buy a new DVD which did not cure the problem . Fortunately the guy from whom I bought the DVD on EBay was good enough to advise me...

Although I have replaced all 6 glow plugs on my 2005 Allroad (yes all 6 were open circuit!) cold starting is still not as it should be. (Please see my post 2 weeks ago where I have described the job done) When the ambient is 4c or more then the engine will start first time but when it is any...

I have now successfully replaced the glow plugs as follows - ( I will also post this on a new thread for the benefit of other members) After some careful shopping around I bought a set of six NGK glow plugs from a local branch of GSF which, with a 10% discount came to £47.00...

Thanks for that info - I suspect I'm going to find much the same

I am now encouraged to do the job (when it stops raining) - When you changed your did the cold starting improve ?

I am now realising that the plugs are "buried" in the hole below each connector and it is going to be a very very fiddly job and yes I am sure the temp sensor is ok because the "on" time definitely varies with temperature. I have spent most of the day surfing and found very little about this...

Thanks for the replies but sorry, I must be missing something. If the glow plugs are on the wires in question then they must be inaccessible without at least removing the inlet manifold ? I cant even see them let alone get a spanner on them ! are we discussing the same engine (BAU 2.5 tdi)

I've had my lovely 2005 Allroad Quattro a few months now and I am enjoying it greatly, in fact it is probably the best car I've ever owned in nearly 50 years of motoring, and I've had some classics! Being a perfectionist, when my 2.5 tdi engine hesitated to start on a couple of cold mornings...