Ask Honest John

Most recently answered nox emissions questions
I've only had my 2010 Volkswagen Caddy Maxi for a month and the fuel injector has gone. The van has only done 77,000 miles. I read somewhere that Volkswagen were replacing for free due to a recall. As...
It is difficult to read any media article at the moment which doesn't demonise diesel engines and their effect on air quality. As a driver of a BMW 320d, bought new in good faith in 2015 (Euro5 compliant),...
I took my Volkswagen Touran along for the emissions fix last Tuesday. The very next day, the car lost power at 40mph. The same thing occurred the next day and the next. On Saturday I stopped at a roundabout,...
I've tried to order the Audi Q2 2.0 TFSI Quattro S Tronic, but Audi tell me the quattro is unavailable with the TFSI (petrol) engine.
I have a 2014 Porsche Macan 3.0-litre diesel, bought new. It recorded 42mpg or better on a long run and 39mpg average on short urban runs. Porsche wrote asking for the car to have a software update for...
I bought a new 2013 Audi A3 which has apparently not been affected by the emissions problem. I had intended to do 20,000 miles per year, but my personal circumstances changed and I have only done 20,000...
Had the software update done by the AA on behalf of Volkswagen. Since it was done, my Volkswagen Caddy Maxi has gone into limp mode with an apparent EGR valve problem. Volkswagen told me categorically...
My Volkswagen dealer has advised against carrying out the emissions software update on my Golf Plus because they say there is a fault in the exhaust gas recirculation valve. The car drives fine and no...
I intend to buy a new Audi Q5 diesel. Due to the government's latest thinking about diesel cars, and the possibility of losing 15 - 20 per cent when the time comes to sell after three years, would PCP...
Based on your advice and all you've written, I bought a Kia C'eed estate auto 1.6 diesel (no DPF) with 37,000 miles on the clock from a Kia dealer this January for £5500. I drive approx 30,000 miles a...
 

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