88C direct fit thermostat for M62TU

[Purplecty]

Originally Posted by tartilla

I'm looking to get a lower thermostat in my 4.6 as well.

I'm not confidant the electrical control system is robust enough to rely on and use all the time. Better to have an appropriate mechanical lower thermostat.

There is another option for the electric fan control to be remote from the ECM. Simplifies things. Or at least as a backup.

What source and part number where you planning to use?

I was looking at the e38 88c.

https://www.ecstuning.com/b-vemo-par...512248542~vmo/

[aaalbedo]

Greetings! First post in the forum today.


I have the 88° C thermostat noted above on my 2003 E39, and it throws a code about the heater about every fourth start. It has Dinan software so that may contribute. The E39 forums discuss adding a resistor (sorry, don't recall part number or where I bought it) but the infrequent code issue persists.



I just found this alternative at ECS; it has the heater connector. Bought one to try in my 2002 E53 4.6iS:


https://www.ecstuning.com/b-bremmen-...31436386~ber~/


I'll likely put one of these in the E39 too if it's trouble-free in the E53.



Larry

[Bmwe5320023.0]

How did this thermostat fare?
I'd like to lower my temps on M62b44tu but don't have a tune for DME and would like to avoid errors and dashboard lights...