What is life like with your car? Let us know and win £500 in John Lewis vouchers | No thanks
BMW 6 Series - 2006 BMW 650i e63 fault code 4f81 - Joshua29

Hi wondering if anybody could help me please I have a fault code 4f81 ratio monitoring clutch A , the car seems to thump in 1st and 2nd gear and sometimes high revs before changing gear I have taken the car to one gearbox repair garage and they are saying it could be a complete gear box repair . I have read a couple of forums and have come across several which suggest it could be a cracked adapter near Mechatronics and to fix this would need a new adapter and sleeve I mentioned this to the garage and was told it won't be this . I have also been slightly put off by the price changes of this garage every time I get it contact . If anyone could help it would be appreciated thankyou

BMW 6 Series - 2006 BMW 650i e63 fault code 4f81 - bathtub tom

How long have you had the car, what's it's mileage age and history?

BMW 6 Series - 2006 BMW 650i e63 fault code 4f81 - Joshua29

Hello sorry for the late reply . I have had the car for 1 year it's a 2006 model with 105000 miles on it with full service history BMW/specialist. when I bought the car it didn't really have any issues until couple of weeks later when I felt a faint thump in 2nd gear I took it back to where I purchased it from and was told it's normal , it was something to to with adaptive gear box apparently . The garage asked about my journeys and if I drove mainly around town or parkway / motorway and I mentioned I drove just around town and he said that's what the problem is . The fault code only appeared one month ago . Thankyou for taking time to read post

BMW 6 Series - 2006 BMW 650i e63 fault code 4f81 - sandy56

Find a gearbox specialist FEDAUTO have a list covering the country, as specified on this website. I would try find a local specialist first.

When was the gearbox oil changed last?

http://www.fedauto.co.uk/