[faz]

Hi everyone,

Need some advice from you. Bought 2011 335d with 59k miles back in March 2017 from dealership, was a previous CPO car (but CPO was disabled on it?) anyway, I didn't have the CPO coverage but the carbon build up cleaning was done under CPO around 55k miles so that put my mind at ease.

Last January at around 70k miles, got a check engine light and P02CE code, which was diagnosed by the dealership to be a faulty injector #2 and replaced free of charge to me, after I paid $330 for a software upgrade (they couldn't run the diagnostics that was required by BMW to cover the part unless they did a software upgrade, which I had to pay for! kind of pissed me off, but ... lets move on.)

I have done the oil/filter/cabin filter/air filter/exhaust fluid myself and all look great now. General maintenance stuff.

A couple of weeks ago battery died on me and had to change the battery (used AAA battery truck and AGM battery from them) which just got registered to the car at the dealership so it should be all set.

The car runs fantastic and with all the options it has, it is just a joy to drive. No plans on doing any mods that can cause issues with the CA emissions regulations.

Had the crank shaft pulley / harmonic balancer go out on me this past week (other thread) and got that replaced by the dealer at a huge cost to me. $1450 or so out of pocket, as per other thread I should have been able to get it done cheaper but circumstances forced me to get it done ASAP and had to pay higher price for it. So be it.

My question is are there any other items that will come up that I have to look out for as known issues on these engines? I am not worried about window regulators or brake jobs or other regular maintenance items.... but this balancer issue, just driving down with no warning and all of a sudden bam, crankshaft pulley and stranded and $1500 in repairs, this got me upset and am ready to sell the car now. Believe me, I am no stranger to BMWs and cost of maintaining them, (see my signature for the list of previously owned BMWs), but I am now wondering are there any other ticking bombs that I should look into before they show up? I really like the car and would love to keep it, but with kids and busy schedule, I have to decide if the mechanical interruptions are going to be often and ahead of me,..... or perhaps the worst of it is behind me already so it would be stupid to sell it now?

What are your thoughts?

[dmanb2b]

Vacuum lines, intercooler boost hose o-rings and/or red boost pipe failure, cracked egr cooler (used spares are cheap), scr system issues (probably under 10 yr/120K extended warranty), turbo actuators/solenoids. I'm probably missing something, but those come to mind.

[BB_cuda]

Faz, people have had fun with the urea metering valve, the temp sensor in the urea tank, same said tank leaking urea, and the NOX sensors related to same urea/SCR system. I’m unsure of your appetite for deleting the ABCs. It is well publicized here about the harmonic dampener going out. Never heard a price as high as $1450 for a replacement. Sorry to hear they got you good.

Lots of these headaches are gone with deletes but not pushing the issue. Some don’t want to do it because they want the car to remain compliant and others can’t delete because of their state’s laws.

[montr]

There are few case where the return spring of valve on the EGR cooler break. You have to replace the whole EGR cooler. You should put some grease on the spring to avoid the rust and it breaking.

In RED is the location of the spring

Also, the Glow Plug Controller is likely to fail

[faz]

Originally Posted by dmanb2b

Vacuum lines, intercooler boost hose o-rings and/or red boost pipe failure, cracked egr cooler (used spares are cheap), scr system issues (probably under 10 yr/120K extended warranty), turbo actuators/solenoids. I'm probably missing something, but those come to mind.

Worrying list. Thank you.

[faz]

Originally Posted by BB_cuda

Faz, people have had fun with the urea metering valve, the temp sensor in the urea tank, same said tank leaking urea, and the NOX sensors related to same urea/SCR system. I’m unsure of your appetite for deleting the ABCs. It is well publicized here about the harmonic dampener going out. Never heard a price as high as $1450 for a replacement. Sorry to hear they got you good.

Lots of these headaches are gone with deletes but not pushing the issue. Some don’t want to do it because they want the car to remain compliant and others can’t delete because of their state’s laws.

Thanks for the feedback. I overpaid big time and it is my fault. Received a quote for labor from a Bmw dealer mechanic on Craigslist looking for side jobs for $225 labor, and could have bought the orig BMW parts from ECS tuning for $650-ish. But missed the email from the mechanic and needed to get the car fixed ASAP so off to the dealership I went.

Thank you for all the details. I certainly appreciate it. Will have to decide in the next couple of weeks if I am going to keep the car or not. I mean I love everything about it. Part of me says I should stick with it and hope for the best.

[faz]

Originally Posted by montr

There are few case where the return spring of valve on the EGR cooler break. You have to replace the whole EGR cooler. You should put some grease on the spring to avoid the rust and it breaking.

In RED is the location of the spring

Also, the Glow Plug Controller is likely to fail

Nice picture. Thank you for the feedback.

[PerfectAce]

The thermostat is another part that is also likely to fail (if it hasn't already.) They typically fail open and as a result keep the coolant temp low thus overworking the glow plug system. If the coolant temp is extremely low (under 75 deg C) the DPF will be prevented from performing regens.

The good news is that the thermostat is a cheap part ($70-ish) and is DIY-able. Check your coolant temp by accessing the hidden menu in the gauge cluster and verify that normal operating temps are around 88 deg C. If not, replace part.

[335dlci]

Have you read the sticky?

[PaKii94]

Originally Posted by faz

Worrying list. Thank you.

I mentioned it in another thread but a lot of those are fixed when you do the deletes. Since you're in CA, that might not be an option. If so, I guess you just have to be on the look out and hope BMW covers the emissions!

[faz]

Originally Posted by PerfectAce

The thermostat is another part that is also likely to fail (if it hasn't already.) They typically fail open and as a result keep the coolant temp low thus overworking the glow plug system. If the coolant temp is extremely low (under 75 deg C) the DPF will be prevented from performing regens.

The good news is that the thermostat is a cheap part ($70-ish) and is DIY-able. Check your coolant temp by accessing the hidden menu in the gauge cluster and verify that normal operating temps are around 88 deg C. If not, replace part.

Thanks. Checked today and after warm up mine is running consistently at 80-83 degrees. Some posts and search results suggest this is kind of acceptable ( although not optimal)?

[faz]

Originally Posted by 335dlci

Have you read the sticky?

Sorry didn’t , I will search for it and go through it.

[faz]

Originally Posted by PaKii94

I mentioned it in another thread but a lot of those are fixed when you do the deletes. Since you're in CA, that might not be an option. If so, I guess you just have to be on the look out and hope BMW covers the emissions!

Thank you. Yes CA emissions requirements need to be met for license plate renewals. Will be on the lookout for these if I end up keeping the car. Thanks.

[ilko]

Originally Posted by faz

...paid $330 for a software upgrade (they couldn't run the diagnostics that was required by BMW to cover the part unless they did a software upgrade...

Can you elaborate on that please? What is the software upgrade? I just got a P02CE code as well and am looking at my options. Currently giving it the "Italian tune up" with a double dose of Diesel Kleen...

[montr]

P02CE can be an injector problem or a CBU problem. Or it could be from an old version of the DME software. I suspect the diagnostic procedure call to bring the DME software to the latest version.

[M5_1of400]

Originally Posted by faz

Hi everyone,

after I paid $330 for a software upgrade (they couldn't run the diagnostics that was required by BMW to cover the part unless they did a software upgrade, which I had to pay for! kind of pissed me off, but ... lets move on.)

Dealership tried to pull that one on me also when I took my X5 for the FRM recall.. they where telling I had to pay the “programming fee” even if they had to replace the unit.. so I took it to a different dealership and they fixed everything free of charge.. as it should if a certain item is under recall.

[faz]

Originally Posted by ilko

Can you elaborate on that please? What is the software upgrade? I just got a P02CE code as well and am looking at my options. Currently giving it the "Italian tune up" with a double dose of Diesel Kleen...

Got the CEL and when checked, got that code.

Took it to the dealership and they said they will have to run diagnostics on it (BMW requirement to see if it falls under warranty or not). To run diagnostics the version of car’s software had to be updated and they wasn’t covered. I had to pay $330 to bring the software up to date, then they ran diagnostics and it shows injector issue and was fixed under the warranty.

On another forum ( search result in that code) showed one of the users had run the car WOT a few times on the freeway and that managed to unclog the injector ( or something to that extent) so I would recommend trying to do the Italian tuneup first.

I didn’t particularly want a software update but had to spend the money on it. I would have preferred to have tried the WOT approach first at least, but I saw that afterwards.

[faz]

Originally Posted by montr

P02CE can be an injector problem or a CBU problem. Or it could be from an old version of the DME software. I suspect the diagnostic procedure call to bring the DME software to the latest version.

Yes correct.

[faz]

Originally Posted by DieselDemonDM

Dealership tried to pull that one on me also when I took my X5 for the FRM recall.. they where telling I had to pay the “programming fee” even if they had to replace the unit.. so I took it to a different dealership and they fixed everything free of charge.. as it should if a certain item is under recall.

Man I was pissed but was under time pressure and just wanted it done. Was going to follow up with BMWNA afterwards but again let it go. It is not right: if something falls under warranty or recall, all diagnostics should be included, and if due to software updates afterwards Bmw can’t run th diagnostics, they need to include the update as part of that warranty. Glad you were able to have another dealership do the work. Here in my area (Bay Area) Bmw dealerships are all busy and none do anything for free.

[PerfectAce]

Originally Posted by faz

Thanks. Checked today and after warm up mine is running consistently at 80-83 degrees. Some posts and search results suggest this is kind of acceptable ( although not optimal)?

A sign that your thermostat isn't fully closing. If you let it go, you can definitely expect a burnt out glow plug controller in your future.

[montr]

Originally Posted by PerfectAce

A sign that your thermostat isn't fully closing. If you let it go, you can definitely expect a burnt out glow plug controller in your future.

My thermostat is fine and my glow plug controller failed!

[faz]

Originally Posted by PerfectAce

A sign that your thermostat isn't fully closing. If you let it go, you can definitely expect a burnt out glow plug controller in your future.

Thank you. I put this thread up to get guidance and you have provided fantastic feedback. I appreciate it and will look into replacing the thermostat sometime soon.

For future reference and quick access for myself others that might come across this post, found the following:

Thermostat DIY how-to here:
https://www.e90post.com/forums/showthread.php?t=632656

Thermostat part number: 11517805811 ($80-ish)
https://www.fcpeuro.com/products/bmw...5d-11517805811
https://www.ecstuning.com/b-genuine-...r/11517805811/

=====

Glow plug controller part no.: 12218591724 ($120-ish)
https://www.fcpeuro.com/products/bmw...x5-12217800156
https://www.ecstuning.com/b-genuine-...e/12218591724/

Also a how-to video on glow plug controller change, in case that is needed in future: