Rough idle on cold start,Then gone.

assassinsbrotherhood · 07-01-2021, 09:14 PM

Hi Guys,
I have owned my 2010 330d for 10yrs now and it may be hard to believe, but this is the first issue I have ever had.It has 200,000klm on the clock.I saw that many people have had this issue and decided to add my 10c worth as I have seen people trying to fix this problem by replacing, injectors,glow plugs, controllers, pumps, valves,manifolds and all types of things and then still having the issue.Also I was not recording any error codes as well so this was what causes people to overlook this place.

.So I can tell you that all it was to fix mine was a leaky 1st cylinder.It was very hard to see and track down, so I just removed all the injectors and replaced the seals and re seated them and now all is fine. I even have a remarkable increase in power.Glad I didn't have to replace anything else to track down the problem. So for a measly $30 problem solved. My mechanic is fantastic.Hope this helps someone save a heap of money.

awenthol · 07-12-2021, 03:04 PM

By this you mean the copper seal on the injector nozzle?

07-01-2021, 09:14 PM	#1
assassinsbrotherhood 330d E90 LCI M Sport. 20 Rep 76 Posts Drives: 2010 330d e90 LCI M Sport Join Date: Oct 2018 Location: Brisbane/Australia iTrader: (0) Garage List 2010 BMW 330d e90 L ... [0.00]	Rough idle on cold start,Then gone. Hi Guys, I have owned my 2010 330d for 10yrs now and it may be hard to believe, but this is the first issue I have ever had.It has 200,000klm on the clock.I saw that many people have had this issue and decided to add my 10c worth as I have seen people trying to fix this problem by replacing, injectors,glow plugs, controllers, pumps, valves,manifolds and all types of things and then still having the issue.Also I was not recording any error codes as well so this was what causes people to overlook this place..So I can tell you that all it was to fix mine was a leaky 1st cylinder.It was very hard to see and track down, so I just removed all the injectors and replaced the seals and re seated them and now all is fine. I even have a remarkable increase in power.Glad I didn't have to replace anything else to track down the problem. So for a measly $30 problem solved. My mechanic is fantastic.Hope this helps someone save a heap of money.
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07-12-2021, 03:04 PM	#2
awenthol Private 26 Rep 53 Posts Drives: BSM 2011 335d Join Date: Jul 2018 Location: Detroit iTrader: (0)	By this you mean the copper seal on the injector nozzle?
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