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[Rich_v6_Estate_Elite]

Ok noticed something very strange yesterday with the running temp of the car and the performance seems to be held back.

Firstly I know we have had discussion re numbers on the temp gauge so if I say my gauge has four major lines 25% 50% 75% and Red = 100%.

When I bought the car generally it ran at between 25 - 50% and performance seemed fine.

Yesterday driving back from work on M25 noticed the car felt like it was holding back, felt I was really having to drive it and always on the accel having to push it on. Noticed that the Temp gauge was below the 25% line.
It had been cold so I had turned the Aircon up to 23, had warmed up and turned Aircon down to 21 and Temp Gauge went back up to just over 25% line. But still had the feeling the car didn't want to go as it would normally.

Not been as bad today on the same run.

Last night checked Coolant and no problems no cream deposits etc.

Hope above make sense to someone.

Any suggestions please.

Thanks

[Debs.]

Ok noticed something very strange yesterday with the running temp of the car and the performance seems to be held back.

Firstly I know we have had discussion re numbers on the temp gauge so if I say my gauge has four major lines 25% 50% 75% and Red = 100%.

When I bought the car generally it ran at between 25 - 50% and performance seemed fine.

Yesterday driving back from work on M25 noticed the car felt like it was holding back, felt I was really having to drive it and always on the accel having to push it on. Noticed that the Temp gauge was below the 25% line.
It had been cold so I had turned the Aircon up to 23, had warmed up and turned Aircon down to 21 and Temp Gauge went back up to just over 25% line. But still had the feeling the car didn't want to go as it would normally.

Not been as bad today on the same run.

Last night checked Coolant and no problems no cream deposits etc.

Hope above make sense to someone.

Any suggestions please.

Thanks

Running the aircon with it`s double fans on cool(ish) days WILL also overcool the engine radiator somewhat; but the coolant-thermostat should ensure that the engine temp. remains within desirable limits.....if, (like my car) the water-stat is failing, then (perhaps?) the running aircon fans might have an overcooled effect on engine performance.
Expert view sought here......

[Steve1077]

My car felt like that with a broken vac tank, its amazing how much that multi ram air system makes

[Mike Collins]

If it won't make halfway up the scale, thermostat change is probably needed. Not uncommon.

[TheBoy]

Sounds a bit like stat.  Did it warm up in traffic?