Fault code BMW ......P1253 ?????

cutch · 16-03-2010, 10:44 PM

I cant clear this fault code on a 320 cd sport 53 plate, bought the thing at auction and i think its on limp mode, managed to clear a EGR fault code and oine for 02 emissions, thought it might be cos the battery was flat and had to jump it, There was no oil in it when i checked before starting so i put some in, got it running but it wouldnt rev past 3grand. I have left it at the auction to go back through but would like to fix the problem it said it was a BMW specific code, is that why we couldnt clear it with our diagnostic???

Any help would be appreciated, i've got a lot of money now tied up in a car thats not running right!!!

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oldford · 17-03-2010, 08:46 AM

P1253 - Boost Pressure Positioner Circuit open.
You can clear the code, but it's back before you had a change to reread the codes.
So, it's a hard fault. Either the "Positioner" or the wiring is disconnected.
I think this means a waste gate valve.

You would be better off reading BMW codes with a factory (or equivalent) tool.
There's not much to find on the internet about the BMW's specific codes.
Use a tool like this: http://www.bavariantechnic.com/

cutch · 17-03-2010, 09:14 AM

Waste gate, would that explain why theres some oil coming out around that area?

oldford · 17-03-2010, 11:48 AM

No. But a seized turbo would.
Is there also oil in the hose from turbo to intercooler?

problematic · 17-03-2010, 11:56 AM

typical auction type car. this is why people put them through there!!! they look perfectly fine, but usually turn out to be heaps

good luck with it

17-03-2010, 09:14 AM	#3
cutch Series 1 4x4 cossie comin Garage is empty, add now Trader Score: (1) Join Date: Mar 2008 Location: Bonnie Scotland !! Or offshore in Africa!!!! Posts: 2,030 Rep Power: 6	Waste gate, would that explain why theres some oil coming out around that area? __________________ Series 1 4x4 Escos http://passionford.com/forum/restora...4x4-cossy.html I get all my bits from www.mattlewismotorsport.co.uk/

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17-03-2010, 08:46 AM	#2
oldford Too many posts.. I need a life!! Garage is empty, add now Trader Score: (0) Join Date: Jan 2008 Location: Netherlands Posts: 619 Rep Power: 5	P1253 - Boost Pressure Positioner Circuit open. You can clear the code, but it's back before you had a change to reread the codes. So, it's a hard fault. Either the "Positioner" or the wiring is disconnected. I think this means a waste gate valve. You would be better off reading BMW codes with a factory (or equivalent) tool. There's not much to find on the internet about the BMW's specific codes. Use a tool like this: http://www.bavariantechnic.com/

17-03-2010, 11:48 AM	#4
oldford Too many posts.. I need a life!! Garage is empty, add now Trader Score: (0) Join Date: Jan 2008 Location: Netherlands Posts: 619 Rep Power: 5	No. But a seized turbo would. Is there also oil in the hose from turbo to intercooler?

17-03-2010, 11:56 AM	#5
problematic I'm Finding My Feet Here Now Garage is empty, add now Trader Score: (0) Join Date: Nov 2007 Posts: 130 Rep Power: 5	typical auction type car. this is why people put them through there!!! they look perfectly fine, but usually turn out to be heaps good luck with it

17-03-2010, 11:56 AM
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