mydan99
New Member
Hi All,
Before i describe my issue and seek advice, i have extensively searched multiple forums about the issue i am having but i am not entirely sure what the fault might be - i am hoping someone has faced the symptoms before and fixed the underlying issue.
I have a 2005 CLK350 with the following symptoms (see youtube video to see issue in action taken in Dec 2018)
- temp gauge fluctuates, increasingly more in traffic and slow speeds, varying from 110c down to 60c sometimes. This will rapidly go up and down.
- the above issue seems to be a lot more prevalent in summer
- error on dashboard shows "Coolant visit workshop"
- when the error on dashboard shows, the AC fails to deliver cold air but when there is no error, the AC works perfectly fine
- I've checked fuse 51 as mentioned in some threads
- i believe the fan does work. There are some weird times when i use the car (e.g. to go shopping) and when i return and put ignition on position 2, the fan in the engine bay is running at full speed
I have been on long drives without facing this error at all but as mentioned it happens a lot more in hotter weather.
Im leaning towards the issue being a form of sensor based on the temp gauge (see video).
Anyone have any advice for me please? I am wanting to change the coolant and if i have to open up the car i can try and tackle two in one.
Thank you in advance.
Before i describe my issue and seek advice, i have extensively searched multiple forums about the issue i am having but i am not entirely sure what the fault might be - i am hoping someone has faced the symptoms before and fixed the underlying issue.
I have a 2005 CLK350 with the following symptoms (see youtube video to see issue in action taken in Dec 2018)
- temp gauge fluctuates, increasingly more in traffic and slow speeds, varying from 110c down to 60c sometimes. This will rapidly go up and down.
- the above issue seems to be a lot more prevalent in summer
- error on dashboard shows "Coolant visit workshop"
- when the error on dashboard shows, the AC fails to deliver cold air but when there is no error, the AC works perfectly fine
- I've checked fuse 51 as mentioned in some threads
- i believe the fan does work. There are some weird times when i use the car (e.g. to go shopping) and when i return and put ignition on position 2, the fan in the engine bay is running at full speed
I have been on long drives without facing this error at all but as mentioned it happens a lot more in hotter weather.
Im leaning towards the issue being a form of sensor based on the temp gauge (see video).
Anyone have any advice for me please? I am wanting to change the coolant and if i have to open up the car i can try and tackle two in one.
Thank you in advance.