Thermostat stuck open - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)

evbecks · 11-01-2012, 10:45 PM

Hey guys,

I just got a phone call from my dealer stating that my thermostat is "stuck open" and will be $575 to fix... I told him I would pick the car up tomorrow, and do it myself instead.

This is pretty bad luck considering my warranty ended last Monday!

Anyways, the thermostat looks to be around $150 for parts. Do you guys reccomend OEM BMW or aftermarket?

Is this process any different than any other car? I've changed several thermostats on Honda's/Acura's.

Any DIY's online?

Thanks,

Evan

DRedman45 · 11-01-2012, 10:53 PM

you might as well do the water pump while you are at it

evbecks · 11-03-2012, 12:24 PM

Does anyone know where a DIY is? I cannot seem to find anything...

Evan

hydroboy35th · 01-29-2013, 11:31 AM

I'd like to know this as well.

Dackelone · 01-29-2013, 11:54 AM

Quote:

Does anyone know where a DIY is? I cannot seem to find anything...

Evan

Quote:

Originally Posted by hydroboy35th

I'd like to know this as well.

No one (as far as I have seen) has posted a DIY on 1Addicts. But on the e90post there have been a few.

Pictures: Electric water pump + thermostat replace
http://www.e90post.com/forums/showthread.php?t=347412

I would only use/buy a BMW OE thermostat. I would also replace your water pump and coolant while your at it. You can buy both the thermostat and electric water pump for under $500 now. Check out Dan United or Jason from Tischer.

these videos might also help you out.

Pig Farmer · 01-29-2013, 07:00 PM

I just had my water pump replaced by the dealer. When I picked up the car, I had a strange noise coming from the passenger side coilover so I brought the car back to see what they did to the suspension. They put the car on a lift and walked me through the process. I was surprised to see how easy it was to reach the water pump. Aside from removing the plastic under tray, the only thing you need to remove is the front sway bar. They just unbolted the center bushings, let the sway bar drop (hanging from the end links), and the water pump was easily accessible. You can easily replace the water pump on jack stands. When they reinstalled the sway bar the noise was still there. They kept the car for another day and couldn't figure out where the noise was coming from, which pissed me off to no end. It took me five minutes to figure out that they pinched the thrust bearing on the coilover when lowering the car off the lift. Had I realized it was so easy to reach the water pump i would have replaced it myself since every trip to the dealer seems to result in the need to fix something else they f_ck up. Sorry for the rant.

evbecks · 01-30-2013, 12:11 AM

wow that sucks ^

Anyways i ended up convincing the dealer to fix my car for free

Dackelone · 01-30-2013, 06:43 PM

Hey Guys - PLEASE go to this thread and vote about your waterpump status.

Thanks

e8x electric waterpump failure poll...
http://www.1addicts.com/forums/showthread.php?t=798195

11-01-2012, 10:45 PM	#1
evbecks Boss man Drives: 2009 135i M-Sport Join Date: Mar 2012 Location: United States Posts: 95 iTrader: (0)	Thermostat stuck open Hey guys, I just got a phone call from my dealer stating that my thermostat is "stuck open" and will be $575 to fix... I told him I would pick the car up tomorrow, and do it myself instead. This is pretty bad luck considering my warranty ended last Monday! Anyways, the thermostat looks to be around $150 for parts. Do you guys reccomend OEM BMW or aftermarket? Is this process any different than any other car? I've changed several thermostats on Honda's/Acura's. Any DIY's online? Thanks, Evan __________________ 2009 Montego Blue 135i: :-Dinan goodies-:
	Tweet

11-03-2012, 12:24 PM	#3
evbecks Boss man Drives: 2009 135i M-Sport Join Date: Mar 2012 Location: United States Posts: 95 iTrader: (0)	Does anyone know where a DIY is? I cannot seem to find anything... Evan __________________ 2009 Montego Blue 135i: :-Dinan goodies-:

01-30-2013, 12:11 AM	#7
evbecks Boss man Drives: 2009 135i M-Sport Join Date: Mar 2012 Location: United States Posts: 95 iTrader: (0)	wow that sucks ^ Anyways i ended up convincing the dealer to fix my car for free __________________ 2009 Montego Blue 135i: :-Dinan goodies-:

01-30-2013, 06:43 PM	#8
Dackelone Moderator Drives: 135i Silber mit/Rot 6MT N54 Join Date: Feb 2010 Location: Bayern, Germany Posts: 13,051 iTrader: (0)	Hey Guys - PLEASE go to this thread and vote about your waterpump status. Thanks e8x electric waterpump failure poll... http://www.1addicts.com/forums/showthread.php?t=798195 __________________ Dackel's European Delivery Museum Guide 1addicts at Stelv1oPass

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

11-01-2012, 10:53 PM	#2
DRedman45 Second Lieutenant Drives: 07 e86 //M coupe Join Date: Oct 2012 Location: Northern va Posts: 259 iTrader: (0)	you might as well do the water pump while you are at it

01-29-2013, 11:31 AM	#4
hydroboy35th Private First Class Drives: BMW 135i Join Date: Jan 2013 Location: Dublin, OH. Posts: 110 iTrader: (1)	I'd like to know this as well.

01-29-2013, 07:00 PM	#6
Pig Farmer Lieutenant Drives: 2009 BMW 135i Join Date: May 2010 Location: Florida Posts: 492 iTrader: (0)	I just had my water pump replaced by the dealer. When I picked up the car, I had a strange noise coming from the passenger side coilover so I brought the car back to see what they did to the suspension. They put the car on a lift and walked me through the process. I was surprised to see how easy it was to reach the water pump. Aside from removing the plastic under tray, the only thing you need to remove is the front sway bar. They just unbolted the center bushings, let the sway bar drop (hanging from the end links), and the water pump was easily accessible. You can easily replace the water pump on jack stands. When they reinstalled the sway bar the noise was still there. They kept the car for another day and couldn't figure out where the noise was coming from, which pissed me off to no end. It took me five minutes to figure out that they pinched the thrust bearing on the coilover when lowering the car off the lift. Had I realized it was so easy to reach the water pump i would have replaced it myself since every trip to the dealer seems to result in the need to fix something else they f_ck up. Sorry for the rant.