Hello!
Hoping for your thoughts regarding my 2013 c180 1.6 cgi please:
It's been having fluctuating coolant temperatures over the recent period. Car takes longer to reach operating temps ( approx 90 degrees). Temps fluctuate between 90 degrees and down to even 60 degrees after reaching operating temperature.
Previous similar issues last year- coolant pump replaced.
Taken to main dealer- can't find any faults, pressure tested coolant system- no leaks. I asked about thermostat and they said 'everything is working as it should'.
Advice is to 'see how things go' and they have 'made a note of it in their system'.
Not sure if relevant but I have a warranty on the car which runs out very soon (non-MB warranty)- trying to avoid warranty work by kicking issue down the road? Especially as seeing as its not an MB warranty anyway, even if they note the issue now, I assume they wouldn't cover the work if it turns out to be an issue out of warranty.
In my mechanically uneducated opinion, I struggle to accept that a 30 degree variance in the coolant temperature is within parameters of normal function, especially as this had not been happening previously. Maybe the cold weather, but still I feel the thermostat should be doing its job despite that.
However, should I take their word for it? I took this to the main dealer for their assumed very high expertise with MB products, and I assume they should be aware of MB's issues with coolant pumps and thermostats and how to diagnose them.
Hoping for your thoughts regarding my 2013 c180 1.6 cgi please:
It's been having fluctuating coolant temperatures over the recent period. Car takes longer to reach operating temps ( approx 90 degrees). Temps fluctuate between 90 degrees and down to even 60 degrees after reaching operating temperature.
Previous similar issues last year- coolant pump replaced.
Taken to main dealer- can't find any faults, pressure tested coolant system- no leaks. I asked about thermostat and they said 'everything is working as it should'.
Advice is to 'see how things go' and they have 'made a note of it in their system'.
Not sure if relevant but I have a warranty on the car which runs out very soon (non-MB warranty)- trying to avoid warranty work by kicking issue down the road? Especially as seeing as its not an MB warranty anyway, even if they note the issue now, I assume they wouldn't cover the work if it turns out to be an issue out of warranty.
In my mechanically uneducated opinion, I struggle to accept that a 30 degree variance in the coolant temperature is within parameters of normal function, especially as this had not been happening previously. Maybe the cold weather, but still I feel the thermostat should be doing its job despite that.
However, should I take their word for it? I took this to the main dealer for their assumed very high expertise with MB products, and I assume they should be aware of MB's issues with coolant pumps and thermostats and how to diagnose them.
