Ask Honest John

Most recently answered maintenance questions
We have a Volkswagen Transporter T6. Had a few problems with a fuse blowing and now the central locking is not working. Could this be a fuse problem?
Do you know where I can get an air filter for my 1986 Ford Sierra Cosworth? Ford don't list this item and I've tried Euro Car Parts, Car Parts 4 Less, etc.
The bonnet of my Rover 75 is stuck, what should I do?
I have a 2003 Nissan Almera which keeps overheating. The water pump, thermostat and radiator cap are new. Could you help me?
You have wisely advised owners of diesel turbo cars to idle the engines after a fast run before switching the engine off. Is the same advise also applicable to petrol TSI cars, such as the Volkswagen Polo...
I have a Nissan Micra and my start/stop is not working. There are no faults on the dash board. I replaced the battery but it still does not work. The charge is fine on the battery. Any idea what might...
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?
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?
I have a Vauxhall Zafira 2001 1.6 petrol which has not been driven in months. It drives but won't go over 3000 rpm. It will when parked but there's white smoke. I did the pedal and brake trick and the...
Is an engine flush and clean necessary on a three year old, low mileage car?