Ask Honest John

Most recently answered technical issues questions
Does swirl flap failure affect the 525d engine as regularly as it affects the 2.0-litre and 3.0-litre litre engines?
Does my 2004 Toyota Yaris T spirit have a timing belt or chain?
I have just taken delivery of a new Tiguan 1.4 petrol. I know you are a passionate advocate of Shell V Power so I asked the dealer their views on using this. Predictably, perhaps, they said no need...
The car suddenly has no power but the engine does not stop. I have to pull over quickly turn the engine off and then wait about 10 seconds. When I restart the engine the accelerator revs as normal. Sometimes...
My Peugeot 308 has “System states: anti-pollution system fault” and engine light showing when I start the engine. Everything is working fine and the car is running with no problems. 30,000 miles on the...
I've had my passenger-side wing mirror completely smashed off. Could you tell me are they all the same across the range or is mine because of the folding in business different. Also could you recommend...
My alarm has started going off, some times for hours. Any idea what could be causing it?
Peugeot have recalled 307s for a fault causing headlights to switch off unexpectedly. I'd not previously heard of this problem, but I do now! In brief. My headlights switch off randomly while driving...
Can you please that my 59-plate VW Touran 2.0 TDI DPF Match 140PS Auto has a diesel particulate filter (DPF), and how best to look after this? I use premium diesel, should I expect problems? If so at what...
I have read that adding two-stroke oil to diesel helps keep the pump and injectors lubricated. is this true and would you advocate this. My car is a Skoda Superb 1.9TDI PD130.