Temp Gauge

Miffysmith

Miffysmith

Regular Member
Joined
Sep 10, 2020
Points
16
Hi all

1998 Z3 1.9 owner. Recently taken ownership from the Outlaws. Noticed that the temp gauge sits just above the blue section, even on a long journey. Previous cars (non-BMW) I’ve had always settle in the middle of the gauge between the Blue and Red sections, so this one is bugging me.

Wondering if anyone else has any views on this, please?

Many thanks
 
jonco

jonco

Zorg Guru (IV)
Supporter
British Zeds
The M44 Massive
Joined
Dec 6, 2011
Points
159
Location
Chester
Model of Z
'98 1.9 Auto
The indicator should sit central on gauge - i.e. vertical position. The usual culprit is thermostat stuck part open.
 
Miffysmith

Miffysmith

Regular Member
Joined
Sep 10, 2020
Points
16
Thanks (again), have you done one of these changes yourself? I'm no mechanic, so wondering what the difficulty scale is?
 
jonco

jonco

Zorg Guru (IV)
Supporter
British Zeds
The M44 Massive
Joined
Dec 6, 2011
Points
159
Location
Chester
Model of Z
'98 1.9 Auto
Miffysmith said:
Thanks (again), have you done one of these changes yourself? I'm no mechanic, so wondering what the difficulty scale is?
Click to expand...
Yes - done this and water pump at same time. Stat is straightforward and on the M44 (1.9) you can access it without removing radiator. You have to partially drain system - problems can arise with air in system on re-prime and the usual tip is to elevate front of car when priming.
 
Miffysmith

Miffysmith

Regular Member
Joined
Sep 10, 2020
Points
16
I've seen M36 mentioned for my engine, as well as M44... how best to be sure. VIN search (somewhere?)
 
mwpe

mwpe

Zorg Guru (V)
Supporter
Joined
Dec 8, 2011
Points
178
Location
Camberley
Model of Z
3.0
The Z3 1.9 had either an M43 or M44 engine. Easy to tell the difference by looking at the top. The M43 is single cam and the M44 is twin cam.
 
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