Petrol engine sounds like a diesel engine
Hi, First post here being a newbie.
I drive a 2001 156 1.8ts with 79k on the clock. I've had this for 6yrs now and it drives fine to me. Due to circumstances I've listed this for sale. Potential buyer came today to have a look as was very happy with the exterior/interior of the car but as soon as i started it up he ran a mile. He asked if it was a diesel to which i stated it was a petrol engine. Sat inside the car you can't hear anything unusual and as it run's smoothly you wouldn't think anything was wrong. But standing outside of the car he was right in saying it sounds too loud for a petrol engine and indeed does sound like a diesel engine. Any ideas on what could be the problem or problems here? Any help will be very much appreciated. Cheers