W211 320 CDI Thermostat

[bozmandb9]

So I'm sure this is not a new topic. Been wondering why fuel economy was poor, and performance erratic, and suddenly twigged as I noticed that the water temp gauge was usually indicating around 60 max, when I guess it should be showing 90 degrees.

So just a couple of questions, really for anybody who's had their CDI thermostat done. Cost of part, and cost/ time for labour please?

Also any other tips which happen to be relevant.

Thanks

 

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Wahler thermostat from euro is around £40-£50, then 1-1 1/2 hrs labour.