Ask Honest John

Most recently answered technical issues questions
I bought an ex-showroom FIAT Bravo 1.6 Multijet with Dualogic transmission in August 2009 with 400 miles. For 35 years I have always driven automatics and although I took the FIAT on a test drive, it covered...
I bought a nine-month old Vauxhall Vectra 2.2 litre automatic (mileage 10,000) in September 2004 from main Vauxhall dealer. In January of this year, still at only 37,000 miles, the car broke down. The...
I have owned a series of S-Class Mercedes. At least ten in a row, all wonderful, and all petrol. Recently, against my better judgement, I bought an ex-demonstrator diesel: a S320 CDI LWB, with 9,000 miles...
I have recently been quoted £230 by BMW, to change the oil on my 123d M Sport Coupe. This is the first service as indicated by the on board computer. A colleague put me in touch with a BMW trained specialist...
I have a 1999 Mercedes SLK 230 Kompressor with a genuine mileage of 26,000. As I know very little about car engines could you advise me whether this car has a cam belt which will need replacing in due...
Family members are the victim of the diesel particle filter fiasco. They have a '56 registered Vauxhall Zafira 1.9CDtI SRI150 with 40,000 miles on the clock. They drive regularly from Lancashire to Norfolk,...
My current car is a 2006 Volvo S40 1.6D. It has 17' wheels with 205 x 50 x R17 93w tyres fitted. I have no complaints except that the ride is a little hard. Would it improve if I fitted 16" wheels and,...
I have a 2006 VW Polo Sport 1.9TDI so it is now 4 years old and has done 18,000 miles. It is about to go in for its annual service and MOT and the garage is recommending changing the cambelt. Is this really...
I own a 2003 Ford Mondeo Ghia Estate 2.0 TDCi (130). The car has run very well since I acquired it when 12 months old. Last year I hit a pothole that resulted in the front offside spring fracturing. I...
My wife has a Volkswagen Polo S 1.2 64PS registered 06. The VW dealer has told her that she should have the cambelt changed as the car is 4 years old. But it has only done 30,000 miles and I thought the...