Hi guys
Got a strange one that I hope isn’t a problem with the mechatronics unit?
The problem has happened before, but was very noticeable last night. I had 2 other people in the car and 3 bags full of hockey gear, so the car had a fair bit of weight in it. What happens is when I’m driving along in D and the car is in 4th gear, it seems reluctant to change into 5th. It judders slightly and doesn’t change gear. Same happens if it does get into 5th gear it then judders when it's meant to change into 6th. However if I put my foot down a little it will drop into 3rd because of the kick down, then it will happily change from 4th to 5th then onto 6th. Weird thing is it only happened on the way to hockey, on the drive home it was fine. Also if I drive in manual and change gears with the paddles or the gear stick there is no problem. 1st through to 3rd is smooth as you like too. The issue is very intermittent but seems to be worse when the car is weighed down, but it has happened once or twice when it was just me in the car.
I only just had it checked a few months ago by Mr Taber (recommended on this forum) before its MOT and he gave it a service last year, but it has only done 7000 miles since then. All he had to do on the last service was the long life oil change, so do you think it could be some sort of misfire or the spark plugs are wearing out and need replacing?
All stabs in the dark because I’m worried it’s a faulty mechatronics unit, and it’s gonna cost me an arm and a leg to get fixed.
Any advice would be great thanks.
