Ask Honest John

Most recently answered technical issues questions
My Nissan X-Trail has broken down in France. The engine just died and I coasted to a stop. I found a local garage who diagnosed a timing chain problem and wants to strip the engine down to investigate. However,...
The automatic gearbox on my 2002 Vauxhall Zafira has stopped working. The engine starts fine, as does the gear stick, but the car doesn't move. Is there anything inside it that should be working or is...
My battery in my key has gone flat. Do I need a new key or can I just get the battery changed? Also would I have to do this at the dealer or are other places able to offer this service?
I am looking to change my petrol 2003 Honda CRV. It has been a great car, but I want to replace it with something newer. I've looked at the new Honda CRV/Mazda CX-5/Hyundai Santa Fe, but can’t decide. I...
I have had to replace the tyres on my last two cars because of cracks caused by UV light, and not because of wear. Is there any way I can prevent this in future?
We are buying a 2006 Ford Galaxy, which has already been serviced by a local Ford dealer. However, a mechanic has told us that, whatever diesel car we buy, we should change the oil and filters immediately...
I have owned two Kia Sorentos for ten years, and have been very satisfied with them driving over 200k miles. At 60k miles in my second one, I experienced a definite loss of power in 3rd, 4th & 5th gears...
The oil light on my Audi A4 is constantly on. The oil pressure sender has been changed and levels are always kept spot on. What should I try next?
I am buying a Lexus IS 300h: I have a choice to fit 205/55/R16 or 225/45/R17 as opposed to the standard 18-inch wheels. Which do you recommend?
Can you tell me where I can purchase a workshop manual for my Mercedes-Benz C-Class?