What is life like with your car? Let us know and win £500 in John Lewis vouchers | No thanks

Driving characteristics change after turbo change

The turbo failed on my September 2004 BMW 530D auto at 112,000 miles and was replaced and since the new turbo was fitted, the driving characteristic feels different. The automatic gearbox now changes up at higher engine revs and when the turbo cuts in at the higher revs, the power surge is more sudden.

Also, the gearbox tends to hold a gear over a wider rev range than before, introducing some jerkiness to the gear changes from launch and also on deceleration, particularly through the lower gears.

I had thought the turbo a mechanical device only. Might some aspect need recalibration? What other systems might be affected by changing the turbo?

Asked on 14 October 2011 by steve218

Answered by Honest John
Depends on what turbo replaced the original and what was interfered with during the course of it being fitted. So back to whoever fitted it.
Similar questions
My wife's Volvo C30 2.0D has just suffered a flywheel failure at 2.5 years old, 21,000 miles. Volvo are replacing it under warranty but she is concerned about the cause, and whether there likely to be...
My husband is looking at buying a SEAT Altea TDI. I've read a few comments on the internet about the turbo blowing and costing a fortune to repair. Is this a common fault? We had a Ford C-Max TDCI a year...
My 2006 Skoda Octavia 1.9 TDI PD Estate has just completed 150,000 miles, 145,000 miles in my ownership plus 5000 as the dealer’s demonstration car. The only major expense I have incurred was for a dual...
Related models
As saloon, with the advantages of a station wagon body.