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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > service engine soon/reduced power ses



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      07-29-2012, 03:49 AM   #1
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service engine soon/reduced power ses

in the last couple weeks ive had the reduced power ses come on under different instances. mostly under heavy throttle driving. restarting the car clears it and i dont see it again for a while. im not sure on how to check the codes and when i start the car i get a service engine soon message.

could this be causing it? whats required to service the engine to clear this out? i was going to change the plugs,oil and filter but since i cant get any one my current code readers to work im stuck.
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      07-29-2012, 09:17 AM   #2
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Take it to shop and get it diagnosed.
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      08-17-2012, 08:26 PM   #3
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took her in today. ended up being the vanos solnoids. since i fell under the service plan,they changed the plugs,oil,wipers,replaced a worn interior piece and gave her a total wash and rub down. didnt cost me a dime.
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      08-17-2012, 08:30 PM   #4
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exact same thing happend to me. Those Vanos Solenoids can get gunked up. Mine occured at 20k miles, how many miles and what year is your car?
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      08-17-2012, 08:45 PM   #5
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Quote:
Originally Posted by joec500 View Post
exact same thing happend to me. Those Vanos Solenoids can get gunked up. Mine occured at 20k miles, how many miles and what year is your car?
38k
now that i know everythings solid i can get the new parts installed.
swaybar showed up today. mtec rear w/diffuser is getting painted. just need DP and new IC.
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      11-12-2012, 11:23 AM   #6
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Dear friends;
last week i bought a 335i.(2008 coupe 99000km)
first day i floored it, after 7000rpm; reduced power! (full engin power no longer available. possible to continue journey. drive moderately.) it was like 150hp
after stop and restart engine no warning but when i floor again i see reduced power!
i found the first owner of the car, he told me that; bmw service can not repair this problem, everytime you will see this warning (when i floor it). i am so so worry now
i checked all service records.
they changed these parts;
13517594943 hpfp
13537585261 injektor
11367540348 outlet camshaft
11127550913 bearing ledge intake
11127531224 bearing ledge exhauste
11317584803 inlet camshaft
11317584804 camshaft exhauste

i researced in forums, i read a lot of posts.
i found vanos solenoid.
does anyone know the part number?
is it definitly solution for me?

pls help help help....
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