The DPF on my BMW 5 Series is blocked - can I add something to clean it?

The DPF on my BMW 5 Series is blocked. Can I add something to clean it as I only do short journeys, or should I give the car a good run on the motorway?

When should a car's oil level be checked?

When should the oil level in a car be checked? Is it when the car is cold, warm or hot?

Have there been any reports of rusting on the Ford Transit Custom?

Have there been any reports of rusting on the Ford Transit Custom?

I need to disconnect my car's battery to do some work - how do I reset the radio code afterwards?

I want to disconnect the battery of my Vauxhall Tigra to carry out some work but I do not have the code for the factory fitted radio. How do I reset the radio code once battery is reconnected?

My central locking isn't working - is this a fuse problem?

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?

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?

The bonnet of my Rover 75 is stuck, what should I do?

My 2003 Nissan Almera keeps overheating, what's the issue?

I have a 2003 Nissan Almera which keeps overheating. The water pump, thermostat and radiator cap are new. Could you help me?

Should I idle the engine of my petrol car after a long run just like you advise for turbo diesel owners?

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...

The start/stop on my Micra won't work - any idea what might be the problem?

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...