Alpina d3 loss of power

Got a question about your ALPINA ask it here !
You've got the car now you need to know something, techincal advice, specific questions etc.

Moderators: Charles, neil, D4

Vojta.MHR
Posts: 2
Joined: Fri Jun 26, 2020 2:18 pm

Re: Alpina d3 loss of power

Post by Vojta.MHR » Mon Jun 29, 2020 2:56 pm

Hi there,
I have a D3 single turbo and I am having issues with loss of boost. When at 6th on highway and full throttle from cca 1500rpm in pulls strong from cca 2k to 3k and than it drops boost. on 1st, 2nd and 3rd it pulls from 2500rpms untill rev limiter.
How to check that actuator is working properly?
DPF OK, new Bosch MAF, new IC, checked hoses for leaks...

User avatar
Charles
Moderator
Moderator
Posts: 8061
Joined: Mon Jun 23, 2003 2:44 am
Location: Oxford

Re: Alpina d3 loss of power

Post by Charles » Mon Jun 29, 2020 3:29 pm

gIzzE wrote:
Mon Jun 29, 2020 1:09 pm
I will do a write up on how to diagnose this properly, what you can look for and how to test.

I will try and and do it with a step by step guide as a walk thorough, what order to test.
That would be great - thanks
Charles
Teacher of Chemistry and driver of ALPINAs - not necessarily in that order ;)
B3S Touring (49/116) - been to the moon and now on the way back!
Renault Grand Espace - not mine but the wife's!

Stuck_mojo
A
A
Posts: 72
Joined: Fri Aug 16, 2019 10:31 am

Re: Alpina d3 loss of power

Post by Stuck_mojo » Fri Jul 03, 2020 4:13 pm

Final update - it was a gunked up MAP sensor.
2015 Porsche Macan S
1998 Porsche 911 C2 Manual
2015 BMW 220i Convertible MSport

User avatar
DonFlintoni
ALPINA
ALPINA
Posts: 830
Joined: Sat Aug 14, 2010 12:04 pm
Location: Cotswolds

Re: Alpina d3 loss of power

Post by DonFlintoni » Fri Jul 03, 2020 10:44 pm

Hooray!!! :D :D :D :D
Former Alpina owner. Having a break.

Rossco1962
Posts: 19
Joined: Sun Jun 23, 2019 8:08 pm

Re: Alpina d3 loss of power

Post by Rossco1962 » Tue Mar 01, 2022 11:13 am

Finally got my D3 Bi turbo to run alot better. I've not had a dyno run so cant tell if its 100% but the guy who looked into the faults at Auto Dynamics (Jason) in Newton Abbot said it performs how he would expect it to.

The first thing he did was scan the car to look at the codes and there was evidence of the Oil Pressure Switch plausability fault returning despite replacement of the sensor a good few months back.

The car was then updated and this enabled both the turbo pressure controllers as the smaller turbo controller had been disabled.

Jason said the DPF back pressure was high so i need to consider a DPF clean or delete pipe. There aren't any glow plug faults so when the weather improves i will get it on a dyno and report back.

Many thanks to Andy Kelly for his assistance also,

RossCo

Post Reply