Part 1 BMW Cooling System Overview with Common Failures for e36, e46, e34, e39

View BMW Repair Tech Tips - follow this link: http://www.bmpdesign.com/technical/cooling/index.php

This video explores the most common cooling system failures and fixes including Water Pump, Thermostat Housing, Plastic Pulleys, Coolant Overflow Tank, and Radiator for the BMW e36, e46, e34, and e39's with all variations of the M50, M52 or S50US Engines.

Category:

Autos & Vehicles

Tags:

• BMW
• e36
• e46
• e39
• e34
• m50
• m52
• s50
• s52
• water
• pump
• waterpump
• thermostat
• housing
• radiator
• hoses
• bleeder
• screws
• m3
• 323
• 325
• 328
• 330
• 323i
• 325i
• 328i
• 330i
• failure

[scant6681]

there is a electronic connection on that black thermo housing, so how would the aluminum housing work in place???

[528im52]

@scant6681 The e36, e34, e39's have housings that do not have the electronics (some of the e39's do), they are just a housing that holds the thermostat. For the later e39 and e46's they do have the electronics and would not be able to use the aluminum housing.

[TigerOscar78]

Does anybody know where to find plastic replacement Pulleys for metal ones?

[528im52]

@TigerOscar78 We have them at bmpdesigndotcom

[scant6681]

@528im52 Quick question, would this aluminum thermostat housing connect the same way as the orignal plastic end connection?

[528im52]

@scant6681 It does for the hose-clamp style hoses, if your vehicle has the quick-disconnect hoses this housing will not work.

[zer0luink]

I don't see how its the same as a e39 my e39 has the thermostat alot different than this one. :(

[1976scoop]

Some people still cling on to the myth that these cars are reliable, high quality machines. Once maybe.

[skillz1855]

@Jetubeb it goes around the water pump itself to seal it where the pump meets the block, if its a quality pump it should already be on the pump, use a lil bit of silicone so that it goes in smoothly

[sinblesser]

So much plastic. O.o

[silverduan]

suggestions on where to buy these engine improvements?

[chinnosequeira]

WHAT A WONDERFUL... HELPFUL VIDEO.....!!! Thanks a lot

[Jetubeb]

One question, I have a e46 , I wanna replace the water pump, but it has a O ring, where exactly does it go?

[ir0nmanx]

I replaced my waterpump on my e46 every year for 2 years due to the plastic impellers failing. So glad I traded it in for a Honda.

[dieudonneMC]

I hate when they use the plastic! GARBAGE!!!!!