Passenger door lock slow in cold

marshak · 11-29-2018, 05:01 PM

I have an issue where my passenger door is slow to unlock but only when it's cold. Locking is just as fast as the other doors. Once the car warms up, locking and unlocking are just as fast as the other doors. I'm thinking about ordering an actuator, just in case. Is there any way to possibly lubricate it? It seems to me that it would always be slow if the part was starting to fail. Thoughts?

F10535 · 11-29-2018, 07:44 PM

my drivers door does the exact same thing has for about a year I usually just manually unlock in the morning the rest of the day it functions fine

ezaircon4jc · 11-29-2018, 08:08 PM

Quote:

Originally Posted by marshak

I have an issue where my passenger door is slow to unlock but only when it's cold. Locking is just as fast as the other doors. Once the car warms up, locking and unlocking are just as fast as the other doors. I'm thinking about ordering an actuator, just in case. Is there any way to possibly lubricate it? It seems to me that it would always be slow if the part was starting to fail. Thoughts?

Quote:

Originally Posted by F10535

my drivers door does the exact same thing has for about a year I usually just manually unlock in the morning the rest of the day it functions fine

Squirt some dry lube into the latch. NOT WD-40 or any type of "wet" lube. Graphite and white lithium should work well.

cdmulders · 11-29-2018, 08:49 PM

Quote:

Originally Posted by marshak

I have an issue where my passenger door is slow to unlock but only when it's cold. Locking is just as fast as the other doors. Once the car warms up, locking and unlocking are just as fast as the other doors. I'm thinking about ordering an actuator, just in case. Is there any way to possibly lubricate it? It seems to me that it would always be slow if the part was starting to fail. Thoughts?

This is a well-documented issue in other threads. It sounds like your lock actuator is failing. Mine, on the driver's door, is doing the exact same thing. One of these days, I will go about having it replaced.

top ramen · 11-30-2018, 08:02 AM

Had the same issue with my driver door closing and opening slower than other doors couple years back. Took the car in and it had it replaced under warranty.

marshak · 12-01-2018, 08:05 PM

I just tried to spray some dry lube in there, I'll check back and let everyone know how it works out

marshak · 12-21-2018, 03:05 PM

Lube didn't seem to do much of anything. According to RealOEM it looks like the part I need is 51217202146. FCP Euro has a kit that includes the two front actuators with part #'s that match cars without soft lose doors. Strange thing is, it says it won't fit. Looks like I'll have to call them

marshak · 12-21-2018, 03:36 PM

Just spoke with dealer and they said the part number should be 51217229458. RealOEM shows this part as well as 51217202146. Does anyone know if they are interchangeable? Dealer wouldn't even entertain the idea of looking up the other part number

ezaircon4jc · 12-21-2018, 09:36 PM

Quote:

Originally Posted by marshak

Just spoke with dealer and they said the part number should be 51217229458. RealOEM shows this part as well as 51217202146. Does anyone know if they are interchangeable? Dealer wouldn't even entertain the idea of looking up the other part number

I'd go with the dealer's part number.

Surly73 · 12-22-2018, 12:59 PM

My passenger side was replaced under warranty with 51-21-7-202-146. My driver's side has now become slow just a month or so after extended warranty expiring. Sadly RealOEM is a little unclear about the difference between the various "System Latch, Left" options available

I think it might be 51217202143, but sites like FCP says it isn't right (even though they didn't ask for my VIN).

I never had much trouble sourcing proper parts for my E39 or E90 - the F10 has been more frustrating.

marshak · 12-22-2018, 01:29 PM

ezaircon4jc - Normally I would but the dealers in the Chicago are always seem to want to take the quick way. With My E46, I was told the wrong part number from the dealer a few times because "That's what the computer said"

Surly73 - Do you have an alarm and comfort access? I've seen numerous threads on the f30 boards that say people used the 51217202146 part when Real OEM listed both that and 51217229458. The kit I referenced earlier has both the left (43) and right (46) for only $66

DavidXON · 12-22-2018, 04:05 PM

Quote:

Originally Posted by marshak

I have an issue where my passenger door is slow to unlock but only when it's cold. Locking is just as fast as the other doors. Once the car warms up, locking and unlocking are just as fast as the other doors. I'm thinking about ordering an actuator, just in case. Is there any way to possibly lubricate it? It seems to me that it would always be slow if the part was starting to fail. Thoughts?

interesting

EL Jeffe 5 · 12-23-2018, 02:00 PM

I have same issue with driver side

Surly73 · 12-23-2018, 08:07 PM

Quote:

Originally Posted by marshak

Surly73 - Do you have an alarm and comfort access? I've seen numerous threads on the f30 boards that say people used the 51217202146 part when Real OEM listed both that and 51217229458. The kit I referenced earlier has both the left (43) and right (46) for only $66

The three options in the matrix on realoem is "alarm", "anti-theft" and "soft close". They don't mention CA and I'm not sure that it would change the latch assembly either way.

The answer, though, is alarm, no soft close, comfort access - unsure about anti-theft. I'm not sure if that's the "double lock" they started on the E34 and kept right up through my E90. I'm not sure my F10 has that feature based on my fooling around.

Qsilver7 · 12-24-2018, 11:19 AM

S8TGA - ZENTRALSICHERUNG aka "Theifproofing" (translated means "central control"...could this be interpreted as central locking control...aka an actuator that can be controlled by central locking system?)
S323A - Soft Close
S302A - Alarm System (aka dwa (the little red LED clown nose below the rear view mirror)

My recommendation would be to select the 11 digit part number were the answer to the supplemental option codes listed would apply.

BadCop726 · 11-16-2019, 05:02 PM

I have replaced the actuator now 2 times with BMW parts. as soon as it get below 32degrees F the door will open and then the latch does not close when the door is shut.

Everything is lubed properly, no water in the door (brand new part)
My last mechanic gave up and said to take it to the dealer.

I hate being stuck in my car.

Anyone have any solutions?

11-29-2018, 05:01 PM	#1
marshak Enlisted Member 4 Rep 49 Posts Drives: 2013 528xi Join Date: Oct 2014 Location: Midwest iTrader: (0)	Passenger door lock slow in cold I have an issue where my passenger door is slow to unlock but only when it's cold. Locking is just as fast as the other doors. Once the car warms up, locking and unlocking are just as fast as the other doors. I'm thinking about ordering an actuator, just in case. Is there any way to possibly lubricate it? It seems to me that it would always be slow if the part was starting to fail. Thoughts?
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11-29-2018, 07:44 PM	#2
F10535 New Member 3 Rep 23 Posts Drives: 535i Join Date: Aug 2018 Location: San diego iTrader: (0)	my drivers door does the exact same thing has for about a year I usually just manually unlock in the morning the rest of the day it functions fine
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11-30-2018, 08:02 AM	#5
top ramen First Lieutenant 115 Rep 305 Posts Drives: Schwarz II 535i Join Date: Sep 2015 Location: NC iTrader: (0)	Had the same issue with my driver door closing and opening slower than other doors couple years back. Took the car in and it had it replaced under warranty.
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12-01-2018, 08:05 PM	#6
marshak Enlisted Member 4 Rep 49 Posts Drives: 2013 528xi Join Date: Oct 2014 Location: Midwest iTrader: (0)	I just tried to spray some dry lube in there, I'll check back and let everyone know how it works out
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12-21-2018, 03:05 PM	#7
marshak Enlisted Member 4 Rep 49 Posts Drives: 2013 528xi Join Date: Oct 2014 Location: Midwest iTrader: (0)	Lube didn't seem to do much of anything. According to RealOEM it looks like the part I need is 51217202146. FCP Euro has a kit that includes the two front actuators with part #'s that match cars without soft lose doors. Strange thing is, it says it won't fit. Looks like I'll have to call them
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12-21-2018, 03:36 PM	#8
marshak Enlisted Member 4 Rep 49 Posts Drives: 2013 528xi Join Date: Oct 2014 Location: Midwest iTrader: (0)	Just spoke with dealer and they said the part number should be 51217229458. RealOEM shows this part as well as 51217202146. Does anyone know if they are interchangeable? Dealer wouldn't even entertain the idea of looking up the other part number
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12-22-2018, 12:59 PM	#10
Surly73 Lieutenant Colonel 535 Rep 1,873 Posts Drives: '11 535xi 8AT KWv3 MPE MHD xHP Join Date: May 2012 Location: Oakville, Ontario iTrader: (1)	My passenger side was replaced under warranty with 51-21-7-202-146. My driver's side has now become slow just a month or so after extended warranty expiring. Sadly RealOEM is a little unclear about the difference between the various "System Latch, Left" options available I think it might be 51217202143, but sites like FCP says it isn't right (even though they didn't ask for my VIN). I never had much trouble sourcing proper parts for my E39 or E90 - the F10 has been more frustrating.
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12-22-2018, 01:29 PM	#11
marshak Enlisted Member 4 Rep 49 Posts Drives: 2013 528xi Join Date: Oct 2014 Location: Midwest iTrader: (0)	ezaircon4jc - Normally I would but the dealers in the Chicago are always seem to want to take the quick way. With My E46, I was told the wrong part number from the dealer a few times because "That's what the computer said" Surly73 - Do you have an alarm and comfort access? I've seen numerous threads on the f30 boards that say people used the 51217202146 part when Real OEM listed both that and 51217229458. The kit I referenced earlier has both the left (43) and right (46) for only $66
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12-23-2018, 02:00 PM	#13
EL Jeffe 5 Major 612 Rep 1,254 Posts Drives: CBR1000RR Join Date: Aug 2015 Location: Iowa iTrader: (0)	I have same issue with driver side __________________
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12-24-2018, 11:19 AM	#15
Qsilver7 Major General 4448 Rep 7,489 Posts Drives: F06 650ix GC / F15 X5 50i Join Date: Oct 2016 Location: Indiana, USA iTrader: (0)	S8TGA - ZENTRALSICHERUNG aka "Theifproofing" (translated means "central control"...could this be interpreted as central locking control...aka an actuator that can be controlled by central locking system?) S323A - Soft Close S302A - Alarm System (aka dwa (the little red LED clown nose below the rear view mirror) My recommendation would be to select the 11 digit part number were the answer to the supplemental option codes listed would apply. __________________ 2015 F06 650ix Gran Coupe`(Moonstone/Cohiba Brown)\| 2014 F15 X5 50i MSport (Space Gray/Mocha) Become a BMW CCA member! Click HERE to join and feel free to use my BMW CCA member #191509 as a referral. Last edited by Qsilver7; 12-24-2018 at 11:30 AM..
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11-16-2019, 05:02 PM	#16
BadCop726 Registered 1 Rep 3 Posts Drives: BMW 535D Join Date: Nov 2019 Location: New York USA iTrader: (0)	2 actuators and still sticks I have replaced the actuator now 2 times with BMW parts. as soon as it get below 32degrees F the door will open and then the latch does not close when the door is shut. Everything is lubed properly, no water in the door (brand new part) My last mechanic gave up and said to take it to the dealer. I hate being stuck in my car. Anyone have any solutions?
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