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BMW 3-Series (E90 E92) Forum
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Help! N52 shuddering :(
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05-08-2018, 07:59 PM | #1 |
First Lieutenant
47
Rep 345
Posts |
Help! N52 shuddering :(
Hello everyone, I am pretty desperate, frusterated and fed up with this car. Its a 2011 328xi with the N52N motor. For the last 30 000km the car has had a snall misfire every now and then. I changed the plugs and coils and it made the car 70% better. The problem has started to rear its ugly head again. I put in new oem plugs, more coils and it still shakes. You can actually hear popping from the exhaust when the car is warm. The missing/shaking happens when the car is both cold and hot. It is much more pronounced when at operating temperature though. I have babied this car since day one and have always given it the good stuff. I don’t even know where to look at this point. All help is welcomed.
Car has 120000km on the odometer, zero leaks, absolutely zero trouble codes yet it idles like crap. It has always had 91 gas and gets euro formula castrol oil. The car revs fine but once warm between 800rpm and 1000rpm it shakes and shudders. It has no issues driving, just realllly annoying when stuck at the lights or waiting for someone etc..From what I can tell with the carly app bank 1 is running 5% rich. Someone please point me in the right direction I’m happy to buy a case of beer to the winning tip haha.. thank you all in advance Also I should add that I just cleaned the vanos solenoids .. and no change |
05-08-2018, 09:34 PM | #2 |
Colonel
312
Rep 2,020
Posts |
might need injector cleaning
Vanos cleaning swaping or replacing. air filter.... but I doubt it if you babied it. 1) go to chevron, fill up with the best for (must be on a nearly empty tank) the Techron in the fuel will clean your injectors. 2) Check how dirty your Vanos Solenoids are. clean and swap them. look up diy on it. 3) Dont have any experience with N52 engines, but it could be Carbon build up in INTAKE Ports. (walnut blast) 4) what scanner are you using? (might require a dealer diagnostic visit) Good luck. |
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05-09-2018, 07:06 AM | #3 |
First Lieutenant
47
Rep 345
Posts |
-I tried the injector cleaning as well, tried a few of them and still no change.
-Vanos solenoids looked fine I cleaned them a few days ago -N52 is not a direct injection engine thus it doesn’t suffer from carbon build up on the valves. -used carly for bmw app If theres any parameters you suggest sharing do let me know! Thank you |
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05-23-2018, 09:43 PM | #5 |
Colonel
296
Rep 2,214
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Gets my vote as well.
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Retrofits: 322, 609, 6FL, 6NR, 6VC, 2TB..
Upgrades: Bilstein B8 Eibach Spring kit |
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