Ask Honest John

Most recently answered technical issues questions
I was recommended to pressure wash under the bonnet of my 2003 Ford Focus prior to putting it up for sale. This was against my better judgement, but I was convinced by my friend that it would be fine....
My 2017 Vauxhall Astra has a large quantity of water sitting in the well under the boot floor where all the battery and fuses are located. It has stopped all the dashboard from working completely, however...
When I turn my on my right indicator, the right brake light also flickers. Once I put my foot on the brakes while indicating, the indication gets faster. What's the issue?
My Mazda CX-5 heating matrix has stopped working, which is quite chilly in winter. I've seen various messages that Mazda are aware of this issue, I was just wondering if you had any advice as to possible...
Driving down a country lane I hit a deep pothole that was covered by a puddle. I was probably going around 25-30mph. My front wheel on the passenger's side is now rattling/squeaking. It’s not constant,...
My 2005 Ford (petrol engine) has started burning quite a lot of oil and I can't find an external oil leak. The car has done 100,000 miles and has been serviced regularly. I'm not keen on embarking on expensive...
Yesterday I discovered water ingress in the front and back near side footwells of my Volkswagen Golf. Recently we have been having problems with condensation in the car, but presumed it was just because...
The heater in my 2002 Vauxhall Vectra has stopped working. Also the fan only works on the highest setting. What parts do I need and is it easy to fix it myself?
My Ford Mondeo's battery is discharging when it's shut down and stationery. It is a new battery, but the car is nine years old, with 53,000 miles on the clock. Any advice?
On odd occasions my 2013 BMW X1 suffers the judders as I accelerate through the gears. As if it doesn't know whether to go on - but you can easily just accelerate through it. BMW can find nothing amiss....