HELP - Loss of power in 335d

Dunny1969 · 04-25-2012, 07:56 AM

I am experiencing a big loss of power over 30mph, the car is now outrun by a Ford Fiesta - its embarrasing! - I took it to an indpendant, who has the fault diagnosis machine -came up with a 41A4 code - open circuit - no idea what it is and after he has had my car 3 times, neither does he. he has changed a few hoses and now says I will need 2 new turbos £2000 +VAT just for parts - god know what BMW will charge!! I am not convinced he really knows the issue tbh.

HELP!!! - any ideas / specialists who won't rip me off but know their stuff on
E90's?

Thx

Gary

cssnms · 04-25-2012, 08:05 AM

Gary it could be any number of things, a bad 2nd turbo, loose or damaged vacuum hose etc. I would recommend taking it to BMW and have them diagnose and provide an estimate for repairs. If you don't like the cost take it to another indy shop for an estimate. Good luck and let us know what it turns out to be.

bmwtechray · 04-25-2012, 03:06 PM

How many miles does Ur car have?DPF clogged ??

GreekboyD · 04-25-2012, 04:29 PM

Could be the turbo sensor is gone on your smaller turbo.

Dunny1969 · 04-26-2012, 05:16 AM

Quote:

Originally Posted by bmwtechray

How many miles does Ur car have?DPF clogged ??

The car has just done 70K miles - all motorway driving....

Dunny1969 · 05-02-2012, 05:45 AM

Thanks for all your help - BMW Warwick fixed it - Pressure Converters - £275 plus labour to fix - enjoying it now!

04-25-2012, 07:56 AM	#1
Dunny1969 Registered 1 Rep 3 Posts Drives: 2008 335d MSport Coupe Join Date: Apr 2012 Location: Warwick iTrader: (0)	HELP - Loss of power in 335d - fault code 41A4 I am experiencing a big loss of power over 30mph, the car is now outrun by a Ford Fiesta - its embarrasing! - I took it to an indpendant, who has the fault diagnosis machine -came up with a 41A4 code - open circuit - no idea what it is and after he has had my car 3 times, neither does he. he has changed a few hoses and now says I will need 2 new turbos £2000 +VAT just for parts - god know what BMW will charge!! I am not convinced he really knows the issue tbh. HELP!!! - any ideas / specialists who won't rip me off but know their stuff on E90's? Thx Gary
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04-25-2012, 08:05 AM	#2
cssnms Brigadier General 220 Rep 3,174 Posts Drives: 2011 BMW 335d Join Date: Sep 2010 Location: Murland iTrader: (4)	Gary it could be any number of things, a bad 2nd turbo, loose or damaged vacuum hose etc. I would recommend taking it to BMW and have them diagnose and provide an estimate for repairs. If you don't like the cost take it to another indy shop for an estimate. Good luck and let us know what it turns out to be.
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04-25-2012, 03:06 PM	#3
bmwtechray Private 6 Rep 66 Posts Drives: e90 335d Join Date: Jan 2011 Location: orange county ca iTrader: (1)	How many miles does Ur car have?DPF clogged ??
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04-25-2012, 04:29 PM	#4
GreekboyD Brigadier General 416 Rep 3,051 Posts Drives: 2009 BMW 335d Join Date: Jan 2012 Location: Toronto, ON, Canada iTrader: (0) Garage List 2009 BMW 335d [8.00]	Could be the turbo sensor is gone on your smaller turbo.
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05-02-2012, 05:45 AM	#6
Dunny1969 Registered 1 Rep 3 Posts Drives: 2008 335d MSport Coupe Join Date: Apr 2012 Location: Warwick iTrader: (0)	Thanks for all your help - BMW Warwick fixed it - Pressure Converters - £275 plus labour to fix - enjoying it now!
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