E46 Fanatics Forum banner
  • Hey everyone! Enter your ride HERE to be a part of this month's Ride of the Month Challenge!

1 - 5 of 5 Posts

·
Registered
Joined
·
318 Posts
Discussion Starter · #1 · (Edited)
If your Thermostat is faulty your temperature gauge needle will always be near the blue (if stuck open) or near the red (if stuck closed).

It is better to have the first kinda problem, thermostat stuck open - normal symptoms are: poor performance, car not warming up quickly, temp needle never quite reaching the middle.

If the thermostat is stuck closed your car will be overheating - you will know!

My thermostat was stuck open (first engine problem I've had); I have a 1999 E46 323iSE - 53K Miles on the clock.

Pic links below to show you the broken plastic clips on the thermostat I replaced:

http://photos.e46fanatics.com/showphoto.php/photo/42328/sort/1/size/medium/cat/500/page/1

http://photos.e46fanatics.com/showphoto.php/photo/42327/sort/1/size/medium/cat/500/page/1

http://photos.e46fanatics.com/showphoto.php/photo/42326/sort/1/size/medium/cat/500/page/1

Also two types of thermostat's are out there; the plastic type as in the picture (models 1999-2000) and a newer improved type which has metal clips (models 2001+). If your replacing buy the metal type.

Hope this helps someone! :thumbup:
 

·
Registered
Joined
·
377 Posts
I just replaced mine and when I asked for the metal one, the dealer said there is only one type, plastic one (fobbed off in a professional way). I think it's worth getting a part number for the metallic one (if u have one). anyway, got mine working now, thanks for the earlier advice. Coincidentally, I also drive a 323i SE 1999 (UK)...
 

·
Registered
Joined
·
318 Posts
Discussion Starter · #3 ·
Part Numbers

Stock323iSaloon said:
I just replaced mine and when I asked for the metal one, the dealer said there is only one type, plastic one (fobbed off in a professional way). I think it's worth getting a part number for the metallic one (if u have one). anyway, got mine working now, thanks for the earlier advice. Coincidentally, I also drive a 323i SE 1999 (UK)...
I was just checking the part numbers on ETK:

The older type is 11 53 1 437 040; I was looking at the pictures of the thermostat you brought, looks like you got the old one again with the plastic clips! oh well lets hope it will last another 50K! :yikes:

The newer type is 11 53 7 509 227.

Regards.
 

·
Registered
Joined
·
377 Posts
Cheers buddy. I mentioned to the dealer about a possible recall in the US on these thermostats, and all I got was 'uhhh...we're in the UK...', I probably asked for it too :thumbdwn:
 

·
Registered
Joined
·
839 Posts
I just changed a few weeks ago but my number is far different from yours.
mine was 11-53-0-139-877
anyway, thank you for that good info. :)
 
1 - 5 of 5 Posts
Top