Dealer can't get it fixed

TitanNut88 · 08-01-2016, 04:13 AM

Hi guys,

I own a January 2013 M135i. Posting in this forum as my doubt is related to the engine and not the model.

I have detected that my car tugs (shakes forward, something like a power loss/normal power/power loss/normal power) when full throttle. Difficult to explain and even more if not native English.

They have noticed that behavior when test-driving the car with me but they don't find the cause as no error is logged.

Been searching and found that it could be due to spark plugs, injectors and/or coils. They have changed the spark plugs, air filters, fuel filters and microfilters at three year maintenance (BSI Plus), but problem is still there.

Any idea on what can be the issue here?

Thanks in advance!

P.S. Car is stock except for the MPerformance Exhaust.

oceanview · 08-01-2016, 04:37 AM

Guess mine does it too:
At any gear (i.e. 2nd, or 3rd) going to like 4500 or 5000rpm keeping the throttle still, so rpm stays at the high rpm.
Engine starts to shake. It feels like you describe, that the engine behaves "nervous".
When I start moving the throttle (excellerating) the engine behaves normal again.

I have to check once, if it also acts like that if in "normal" mode or just in "sport".

So far I rated it as normal turbo engine behaviour and didn't put too much attention on it.

claude1604 · 08-01-2016, 05:21 AM

Do you have any logging device? Might be hitting boost limit, just a thought.

TitanNut88 · 08-01-2016, 06:59 AM

Quote:

Originally Posted by claude1604

Do you have any logging device? Might be hitting boost limit, just a thought.

Will try to buy one and see if something strange gets logged.

cfm56d7b · 08-01-2016, 11:57 AM

Did you dealer open or willing to open PUMA case with BMW in your country? In the US, these problems are shared with BMW North America (NA) and the dealer will work with BMW NA to determine what parts should be replaced next.

The dealer typically cannot replace parts under warranty unless there is a clear diagnostic path: an error code and known repair procedures. Otherwise, warranty repairs will not be reimbursed and prior approval from BMW (in your region) is required.

Suggestion:

- If BMW in your region agrees, replacing DME and wiring harness (there is more than one) from DME to major engine components might make sense.

TommyLights · 08-02-2016, 09:09 PM

Did you check for a boost leak?

CruzM3 · 08-03-2016, 08:59 AM

Quote:

Originally Posted by Tomz_M3

Did you check for a boost leak?

This! Definitely worth looking into.

TitanNut88 · 08-04-2016, 02:49 AM

Quote:

Originally Posted by Cruz28/40

Quote:

Originally Posted by Tomz_M3

Did you check for a boost leak?

This! Definitely worth looking into.

Waiting for my trusted mechanic to come back from holidays for a check. In the meantime, would a boost leak get logged in a diagnostic tool (e.g. Carly for BMW)?

shivaswrath · 08-04-2016, 01:12 PM

have the dealer look at/test fuel pressure regulator, I suspect it's that.

F30ed · 08-05-2016, 02:11 PM

Play with ISTA+. You can get tons of live parameters, like accelerator pedal position, boost pressure, throttle valve position, air mass flow, spark misfires, injector info and so on

shivaswrath · 08-07-2016, 10:25 PM

Have they run a full fuel diagnostic series? That can be a bad pump or fuel pressure regulator sensor.

DJ_OR_DJ · 08-08-2016, 02:12 PM

Take it to another dealer and see what they find.

Just to see.

Is your car stock? Or have you done engine modifications to it?

Overshotgolem · 08-08-2016, 02:29 PM

My car used to do the same , and long story short the ended up changing. My turbo , it was leaking compression or something like that they really didn't explain end to me , I ask but the guy that work there didn't even have a clue about bmw cars. Lol

08-01-2016, 04:13 AM	#1
TitanNut88 Private First Class 315 Rep 170 Posts Drives: M3CxDrive & GR Yaris Join Date: Sep 2012 Location: Barcelona iTrader: (0)	Dealer can't get it fixed Hi guys, I own a January 2013 M135i. Posting in this forum as my doubt is related to the engine and not the model. I have detected that my car tugs (shakes forward, something like a power loss/normal power/power loss/normal power) when full throttle. Difficult to explain and even more if not native English. They have noticed that behavior when test-driving the car with me but they don't find the cause as no error is logged. Been searching and found that it could be due to spark plugs, injectors and/or coils. They have changed the spark plugs, air filters, fuel filters and microfilters at three year maintenance (BSI Plus), but problem is still there. Any idea on what can be the issue here? Thanks in advance! P.S. Car is stock except for the MPerformance Exhaust. Last edited by TitanNut88; 08-01-2016 at 05:26 AM..
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08-01-2016, 04:37 AM	#2
oceanview Captain 207 Rep 603 Posts Drives: 335i F31 RWD Autom. Join Date: May 2013 Location: Switzerland iTrader: (0)	Guess mine does it too: At any gear (i.e. 2nd, or 3rd) going to like 4500 or 5000rpm keeping the throttle still, so rpm stays at the high rpm. Engine starts to shake. It feels like you describe, that the engine behaves "nervous". When I start moving the throttle (excellerating) the engine behaves normal again. I have to check once, if it also acts like that if in "normal" mode or just in "sport". So far I rated it as normal turbo engine behaviour and didn't put too much attention on it. __________________ 335i F31 RWD in SB \|\| Powertrain: Active Autowerke Flash Tune Stage 1 \| AA Charge Pipe \| AA FMIC \| GFB DV+ \| xHD Trans-Flash \| Quaife LSD \| Cyba 3.5" Carbon tips \|\| Chassis: 20" 405M \| Wiechers Strut Bar \| Rear M-Diffusor \|\| Brakes: 18" M-Perf Brake orange 370/345 \| EBC YellowStuff pads all around \|\| Various: LED bulbs: Fog-L. front \| Turn Signal f&r \| Brake L. \| Reverse L. \| Rear L. \| Rear Fog L.
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08-01-2016, 05:21 AM	#3
claude1604 New Member 2 Rep 7 Posts Drives: F30 335 Join Date: Jul 2016 Location: Cape Town iTrader: (0)	Do you have any logging device? Might be hitting boost limit, just a thought. __________________ F30 335i \| Akarpovic Evo Exhaust\| F30 EWG Specific\| JB4 board with EWG Harness and flexi fuel wires\| BMS Intake\| ER Downpipe\| ER Intercooler\| ER Chargepipe\| RennZport boost pipe\| GFB Diverter Valve DV \| Pure Stage 2 Turbo\| Pure Stage turbo inlet pipe\| Stage 2 Fuel-it LPFP\| RennZport Thermostat\| Fuel-it Platinum Tbi-Kit (Includes upgraded fuel lines and ethanol sensor) triggered via FSB\| N20 plugs gapped @ 0.018"\| N20 Tmap sensor\| bootmod3
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08-01-2016, 11:57 AM	#5
cfm56d7b Lieutenant General 5920 Rep 10,301 Posts Drives: 2017 440i Gran Coupe & 2015 X5 Join Date: Nov 2012 Location: Orange County, CA iTrader: (2)	Did you dealer open or willing to open PUMA case with BMW in your country? In the US, these problems are shared with BMW North America (NA) and the dealer will work with BMW NA to determine what parts should be replaced next. The dealer typically cannot replace parts under warranty unless there is a clear diagnostic path: an error code and known repair procedures. Otherwise, warranty repairs will not be reimbursed and prior approval from BMW (in your region) is required. Suggestion: - If BMW in your region agrees, replacing DME and wiring harness (there is more than one) from DME to major engine components might make sense.
	Appreciate 0 Quote

08-02-2016, 09:09 PM	#6
TommyLights Colonel 213 Rep 2,602 Posts Drives: Man Join Date: Jul 2010 iTrader: (12)	Did you check for a boost leak?
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08-04-2016, 01:12 PM	#9
shivaswrath Brigadier General 651 Rep 4,323 Posts Drives: 2012 335i Join Date: Apr 2008 Location: Lost in NJ iTrader: (3)	have the dealer look at/test fuel pressure regulator, I suspect it's that. __________________ CURRENT: 2017 RS3 (miss you guys) SOLD: 2012 335i Mineral Gray M Performance Exhaust/Brakes/Suspension/LSD\|Bav Stage 1/AMP\|\|ER CP/IC/DP/OC \| Dinan CAI/N55 PWG BIG TURBO\|BMWF30.com
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08-05-2016, 02:11 PM	#10
F30ed Second Lieutenant 71 Rep 230 Posts Drives: F30 328i, X3 35M Join Date: Sep 2015 Location: Chicago iTrader: (0)	Play with ISTA+. You can get tons of live parameters, like accelerator pedal position, boost pressure, throttle valve position, air mass flow, spark misfires, injector info and so on
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08-07-2016, 10:25 PM	#11
shivaswrath Brigadier General 651 Rep 4,323 Posts Drives: 2012 335i Join Date: Apr 2008 Location: Lost in NJ iTrader: (3)	Have they run a full fuel diagnostic series? That can be a bad pump or fuel pressure regulator sensor. __________________ CURRENT: 2017 RS3 (miss you guys) SOLD: 2012 335i Mineral Gray M Performance Exhaust/Brakes/Suspension/LSD\|Bav Stage 1/AMP\|\|ER CP/IC/DP/OC \| Dinan CAI/N55 PWG BIG TURBO\|BMWF30.com
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08-08-2016, 02:12 PM	#12
DJ_OR_DJ New Member 4 Rep 25 Posts Drives: 2012 328i Join Date: Jun 2016 Location: California iTrader: (0)	Take it to another dealer and see what they find. Just to see. Is your car stock? Or have you done engine modifications to it?
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08-08-2016, 02:29 PM	#13
Overshotgolem Private First Class 6 Rep 141 Posts Drives: F30 328! 2013 Join Date: Jun 2014 Location: New York iTrader: (0)	My car used to do the same , and long story short the ended up changing. My turbo , it was leaking compression or something like that they really didn't explain end to me , I ask but the guy that work there didn't even have a clue about bmw cars. Lol
	Appreciate 0 Quote