Few problems with 318D LCI running

JU57AJB · 06-26-2015, 03:46 AM

Hi

Just posting with a few problems I'm having with my 318D LCI with the N47 engine.

1. A couple of times it has gone into limp mode with an engine light. I've shut off the engine, restarted and its been fine again for a couple of months

2. An occasional misfire or something when the engine is cold at about half throttle - gets quite jerky!

3. Im sure it is losing power and I am averaging 33mpg which seems a little low considering I do mixed motorway/town driving and I have a slightly heavy right foot but don't drive like an idiot.

4. I'm pretty sure there is too much turbo lag - no power below 2000rpm then woomph when the turbo kicks in.

Any suggestions on where to start diagnosing it- cleaning/new sensors, and is there a way to delete the MAF on the N47?

Thanks!

Leah1 · 06-28-2015, 03:52 AM

Check all your boost hoses haven't popped off or are leaking, otherwise might be a maf sensor gone bad, really need to get it into inpa to scan for fault codes otherwise it's a needle in a haystack!

KM79 · 06-28-2015, 05:31 AM

What age is you're car?If it had the electric EGR valve it sounds like the symptoms you get when its sticking partially open.

OGM2LCI · 06-29-2015, 06:15 AM

Quote:

Originally Posted by KM79

What age is you're car?If it had the electric EGR valve it sounds like the symptoms you get when its sticking partially open.

Is the cure for this a completely new EGR? Mine seems to do this on and off and is an 08 320d

In reply to the OP I'm not so clued up on the matter myself but have read up on something to do with the turbo actuator sticking on some models of the 2.0 diesel which also causes this sort of issue although you can suffer from no power up to higher RPM's and then it releases, depends on how consistent yours is at hesistating until 2000rpm or whether it will rise higher with no power and then shoot off?

06-26-2015, 03:46 AM	#1
JU57AJB Enlisted Member 4 Rep 37 Posts Drives: 2010 318D LCI Join Date: Feb 2014 Location: Yorkshire iTrader: (0)	Few problems with 318D LCI running Hi Just posting with a few problems I'm having with my 318D LCI with the N47 engine. 1. A couple of times it has gone into limp mode with an engine light. I've shut off the engine, restarted and its been fine again for a couple of months 2. An occasional misfire or something when the engine is cold at about half throttle - gets quite jerky! 3. Im sure it is losing power and I am averaging 33mpg which seems a little low considering I do mixed motorway/town driving and I have a slightly heavy right foot but don't drive like an idiot. 4. I'm pretty sure there is too much turbo lag - no power below 2000rpm then woomph when the turbo kicks in. Any suggestions on where to start diagnosing it- cleaning/new sensors, and is there a way to delete the MAF on the N47? Thanks!
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06-28-2015, 03:52 AM	#2
Leah1 First Lieutenant 28 Rep 323 Posts Drives: 320d m sport Join Date: Jan 2013 Location: Space iTrader: (0)	Check all your boost hoses haven't popped off or are leaking, otherwise might be a maf sensor gone bad, really need to get it into inpa to scan for fault codes otherwise it's a needle in a haystack!
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06-28-2015, 05:31 AM	#3
KM79 Major 140 Rep 1,445 Posts Drives: 2017 335D Msport Saloon Join Date: Jul 2013 Location: Scotland iTrader: (0)	What age is you're car?If it had the electric EGR valve it sounds like the symptoms you get when its sticking partially open.
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