Ask Honest John

Most recently answered turbo engines questions
Can you tell me if stop/start systems are bad for engine life? I’ve been told they contribute to the early failure of turbos and I can’t imagine that the amount of fuel saved will pay for a replacement....
I took my van into my garage as it was belching smoke and making a whirring noise on acceleration. I thought it might be the turbo, but the garage said it was two faulty injectors. I had these replaced...
I bought a seven year old Xsara Picasso from a Citroen dealer 16 months ago. The car has one year’s warranty and 60,000 miles on the clock. After six months the injectors had to be replaced (covered by...
I have just purchased a new SEAT Ibiza ST FR petrol. I have in the past read about leaving an engine running until the turbo cools. I have also read that some models have pump which will continue to run...
We bought a used Ford Focus from a dealer one month ago and now the turbo has failed. We’ve been told the repairs will cost £1600. Where do I stand in refusing the car now and asking for money back or...
The turbo on my BMW 1 Series does not function when started in the morning. Yet, when stopped and parked for a while, the turbo performs normally. What's going on?
I own a 2006 BMW X3 2.0d Sport, which at 53,000 miles has suddenly lost all power. At the time it lost power, the car was towing a car and caravan. I took the car to a BMW main service centre and ask...
My 20-year old Mitsubishi 1.8i Space Runner automatic goes on and on like a faithful servant, but I fear replacement time will come next year. I wouldn't buy a diesel because of pollution but I am attracted...
I have a four-year-old Range Rover Sport bought new from a dealer. I have had all the servicing done by the same dealer on schedule. The vehicle has done 68,000 miles and the turbos self destructed, causing...
We are thinking of purchasing a Dacia Sandero Stepway, and would like to know what is your opinion of the small petrol turbo engine versus the diesel? Our mileage is light. Would the small petrol engine...