Rennzport - N54 N55 Low Oil Temp Thermostat

Rennzport

BMWFanatics Advertiser
Official Advertiser
Price: R750 excluding postage.

Please email for stock enquiries and orders -- [email protected]

Note:
Pricing on imported parts will be updated on this thread, as and when required, due to exchange rate fluctuations.

Applications:

2008-2013E82 Coupe 135i / 1M N54 / N55
2008-2013 E88 Convertible 135i N54 / N55
2008-2011E90 Sedan 335i / 335xi N54 / N55
2008-2011 E91 Touring 335i / 335xi N54//N55
2008-2013 E92 Coupe 335i / 335xi N54//N55
2008-2013 E93 Convertible 335i / 335xi N54/ /N55
2008-2009 E60 Sedan 535i / 535xi
2008-2009 E61 Touring 535i / 535xi
2012-F2X F3X M135i /M235i / 335i / 435i
2012-F1X N55 535i 640i (It must be equipped with oil cooler)

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Last edited by a moderator:

cOlDFuSiOn

New member
Excuse my ignorance on the matter.. What would a low oil temp thermostat help achieve? Is the purpose of the normal thermostat to warm up the engine up to optimal temp as quickly as possible?

Still learning about all the mods for the x35i and curious about this one. :=):
 

Rennzport

BMWFanatics Advertiser
Official Advertiser
The rennzport one is a thermostat but a "reverse" design of the stock thermostat.

It opens the oil system at around 90ºC while the stock thermostat opens at around 110ºC. This allows it to start circulating through the oil cooler earlier to keep the engine cooler but at the same time will allow the engine to warm up properly first.
Thats the fundamental difference.

The stock spring goes on the end side of the system and the Rennzport on the cover side of the system.

The spring is stiffer then the stock variable one.
 

cOlDFuSiOn

New member
Thanks much for the response, that makes sense. I did not realize oil would not go the cooler until it was up to temp, but I can understand why. Good to learn new things about the engine I did not know. :coolShake:
 
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