Hello everyone, i am from the UK and own an 03 B6 S4 Avant with a 126323 miles, i have been meaning to get on AR for a while due to oil consumption and JHM recommended to come here for technical advice.
I’ve owned the car for nearly a year and bought it off my Dad, there have been a few issues with it and i’ve been in touch with JHM about them and i asked when they would recommend the right time to get a built motor.
I did a compression test last year and got 8.5 bar on all cylinders, but when i was pulling the plugs out i found them to be highly carbon-ed up and the one in cylinder 8 looked as if it was dipped in treacle.
I have been doing oil and filter change every 3 to 4 thousand miles.
I got a scare last Friday when i was out meeting a few friends and started the car up and it made a huge clacking noise so i quickly turned the ignition off and restarted the engine with no sign of misfire or loss of power. I drove it home which was 18 miles away, i felt a slight misfire when i got within a quarter of a mile from my house and could hear a slight rattle from the engine when letting off the accelerator.
I really don’t want to get rid of this car and i’m planning on pulling the engine this month hopefully.
Thanks for reading.