The rpm on my Audi A4 jumps erratically when idle - what is causing this?

I have a 2010 Audi A4 diesel auto. When idle, the rpm jumps erratically. It doesn't do this while driving normally though. What could be causing this?

My cooling fan isn't working - what should I do?

I have a Peugeot Partner 1.6 diesel. The cooling fan is not working at all. I've checked all the fuses but they're fine. What should I do?

Why won't the door locks work with my keyfob?

The driver's door and the driver's side rear locks wont work with the fob on my 2006 Honda Ridgeline. What can I do to fix this? I really don't want to take it to a dealer, they will charge more than it's...

What is the intermittent ticking I can hear after using my car?

I can hear an intermittent ticking after using my 2000 Daewoo Lanos. It carries on after locking the car and has gone on for at least 12 hours.

What's causing the noise coming from my engine when I accelerate?

My Audi Q3 140 TDI is four and a half years old, with a full five year Audi warranty. It has developed a low clatter, at about 2000rpm and noticeable particularly when the engine isn't up to full temperature,...

My car misfires every few weeks - why does one spark plug always get oil on it?

Every few weeks I have to take the same spark plug out to clean oil off of it because it starts misfiring. Could you please tell me what the problem may be?

What is the intermittent clutch problem on my 2004 Ford Focus?

I have a problem with the clutch pedal on my 2004 Ford Focus 1.8 TDCi staying on the floor occasionally, causing no disengagement of the gears. I lift the pedal up with my foot and clutch works again,...

Why does my engine coolant light come on when I tow my caravan?

I own a 2012 Ford Mondeo 2.0. When towing my caravan the engine coolant light came on with loss of power, after a minute or so the power returned and the light went off. After pulling into the caravan...

How do I get rid of the 'water in fuel' message on my Jaguar XF?

I recently changed the intercooler on my 2010 Jaguar XF and now I'm getting an intermittent warning message which reads 'water in fuel, consult handbook.' How do I get rid of this message?

I can't open my boot of my Mercedes-Benz E Class electrically - is this a known fault?

I've got a Mercedes E320 CDi and I've started to get warnings on my dashboard display concerning the left and right hand rear number plate lights and third braking light. The frequency of these warnings...