Ask Honest John

Most recently answered maintenance and servicing questions
I own a Toyota Yaris and the dash warning light is on. When it first came on I was unable to change gear and Toyota diagnostic said it was a faulty gear box oil pressure switch. I’ve replaced the switch...
I am currently running a 2008 BMW 118d. My mileage is creeping up a lot and the car has now clocked up 100,000 miles. I now have concerns about the longevity of the car as it is making a “chuff, chuff”...
I own a 2001 Volkswagen Golf TDI. It has covered 101,000 miles and has a number of issues that need fixing. Currently, the DMF is vibrating and I have sourced a clutch and DMF for £225 + fitting this would...
I am getting mixed messages from dealers. My local KIA agent says I must have KIA dealer service stamps or I will invalidate my warranty. Other dealers say any VAT registered garage stamp should be accepted...
The head gasket blew on my Vauxhall Corsa back in February, but now I think it has gone again. Or at least was never fixed properly in the first place. How long do you think a replacement head gasket...
Does the Audi Q3 have a cam belt or chain in the petrol and diesel variant? And what is the recommended time and mileage to replace this component?
I am looking at a 2009 Toyota Avensis 2.0 V-matic TR 5dr CVT Auto Estate, one company owner, 120,000 miles petrol for £5000. Do you think it is worth going for this? Should I expect high bills in the near...
I own a 2009 MINI Cooper D, which is suffering a bout of DPF issues. Within a few months of owning the car, the DPF light came on (regularly) and BMW performed a forced regeneration. Two months later,...
I have an Audi A6 Avant 2.7 TDi Quattro (2010) with the automatic tiptronic gearbox. With 60,000 miles on the clock, I have started to get a short squeak when changing from third to fourth. Sometimes it...
Can I remove, and clean the lambda sensor in my Mitsubishi Carisma?