E46 318i -flat battery,thermostat?

Discuss Non-E30 BMW's in here - No selling!

Moderator: martauto

User avatar
ah
E30 Zone Addict
E30 Zone Addict
Posts: 2518
Joined: Mon Mar 10, 2008 11:00 pm
Location: surrey

Post Mon Jan 04, 2010 7:46 pm

My wife's E46 318i (year 2000) has just had its original BMW battery changed.The temperature gauge before the battery change would only go about 1/4 of the way up, and I think the heater was getting warm to hot.Classic knackered thermostat symptoms,but with these modern engines, can a duff battery give the same symptoms?ie 183amp old 520amp new.
Image
Born on the 23 April 1990 320i Alpinweiss ll kabriolett! (SOLD BUT NOT FORGOTTEN !) :cry:
darkchild
E30 Zone Addict
E30 Zone Addict
Posts: 2729
Joined: Mon Feb 06, 2006 11:00 pm
Location: Kingston 12

Post Tue Jan 05, 2010 7:38 am

Nothing modern about the engine in a 2000 model 318i - its the good old 8V M43 engine which is lovely old thing thats easy to work on.

Hopefully it is just a knackered thermostat and this is not your problem but when my old E36 316i temp gauge only got to a 1/4 it was the beginning of the end of the head gasket. The M43 typically needs a head gasket between 90-100K - ask any BMW mechanic (a mate of mine said they used to do 6-7 of these a week!).
town325i
E30 Zone Team Member
E30 Zone Team Member
Posts: 7050
Joined: Thu Jun 26, 2008 11:00 pm
Location: cannock staffordshire

Post Tue Jan 05, 2010 8:10 am

try the thremostat first no matter what as its a cheap part to buy and if it cures it jobs a good en
Image