Please warn your readers about the Siemens tyre pressure monitoring valves as fitted to my Citroen C5.

I feel bound to add weight to the letter from RH of Cumbria about the catastrophic failure of certain tyre pressure monitoring systems. In February 2010 three Siemens TPMS valves failed within 24 hours...

What are the benefits of nitrogen-filled tyres?

My local ATS is offering to inflate my tyres with nitrogen as an alternative to air. What are the benefits of doing this, as the cost is not very much?

Did my Mercedes-Benz dealer alter my tyre pressures to improve fuel economy?

I purchased a new Mercedes-Benz E220CDI in December 2009. In January I received a call from the dealership asking me to take the car in for a warranty job to be carried out. I took the car in and waited...

Should I drop the tyre pressures in my Honda Civic's winter tyres in cold weather?

I have had winter tyres fitted to my Honda Civic (four years old) and I would like to know if it is a good idea to reduce the pressure during snowy weather? If so what would you recommend? Normal pressures...

Can you advise what the correct tyre pressures are for my BMW 530i when carrying a heavy load?

I am about to head off to the south of France with the family in our BMW 530i Sport Touring (2003) and have seen the tyre pressure on the door saying 2.8 bar front and 3.3 bar rear - assuming heavy load,...

What tyre pressures should I use in my Audi A4's Sunew tyres?

I have recently bought an Audi A4 2.0-litre petrol saloon on a 2004 plate. It has come with different wheels and tyres to standard, hence this request for help. Tyres fitted are Sunew 235 Z40 R18 95W....

I had no idea how much low tyre pressures can affect fuel economy.

Seven weeks and 3000 miles after I took delivery of a new Skoda Octavia Scout 1.8 TSI I decided to check my tyre pressures. They were all too low by about 10 per cent. This I fixed using my own pump and...

I bought a used Citroen C1 that was advertised as being PDI'd and serviced - but it hadn't. What can I do?

I recently bought a 58-reg Citroen C1 from a dealer for my son. It came with service history showing that a service had been done and stamped by the dealer at 10,200 miles, and according to the documents...

Which car should we buy to leave in storage in the UK?

My wife and I live in Portugal but are in UK from time to time, when we usually rent a car. Now we're thinking of buying small runaround which we can leave in UK when not here, and this would mean it standing...

Why are the tyres slowly deflating on my Renault Laguna Privilege?

Now that my wife has retired, as I have, we can't justify two cars, so my "too big" 2001/51 Renault Laguna Privilege 1.8, with 80,000 on the clock, will have to go. I say this with some reluctance, because...