New Thermostat Needed?

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Rocketbike
Joined: Thu 17 May, 2012 21:12
Posts: 78

  Z3 roadster 1.9

New Thermostat Needed?

Post by Rocketbike » Thu 09 Oct, 2014 18:20

I have a 1998 1.9, 86,000 on the clock , and I've just noticed this week that rather than sit straght up (1/2 way), the temperature gauge needle is moving about between 1/4 and 1/2 with the heater getting cooler and back to normal as it does. No change in coolant level, but wth a new thermostat about £55 I wanted to check if this sounds like the thermostat on the way out, or possibly something else before I get it changed. Anybody got any thoughts - Thanks

Del
Joined: Sat 19 Nov, 2011 18:35
Posts: 2122

  Z3 roadster 1.9

Re: New Thermostat Needed?

Post by Del » Thu 09 Oct, 2014 19:57

Sounds like the thermostat to me. When I first got my 1.9 it was running a bit cold. As the Autumn came it got worse and when easing off the throttle pedal down hills, the gauge would fall and touch the blue. As you say, the heater got cooler as well. The problem was 100% solved by a thermostat change. It seems very common for them to stick open with age.

Jonco
Joined: Sat 04 Jun, 2011 08:24
Posts: 382

  Z3 roadster 1.9
Location: Cheshire

Re: New Thermostat Needed?

Post by Jonco » Thu 09 Oct, 2014 20:02

Agree with Del - stat needs changing.
You can get them cheaper if you go for aftermarket reasonable quality - Euro Car parts have a reduction on at the moment http://www.eurocarparts.com/car-thermostat

Rocketbike
Joined: Thu 17 May, 2012 21:12
Posts: 78

  Z3 roadster 1.9

Re: New Thermostat Needed?

Post by Rocketbike » Wed 15 Oct, 2014 17:44

Thanks guys - Thermostat purchased from the link, fitted, and now all back working as it should be
Cheers :)

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