All Things Mk5 > How to Guides / Troubleshooting

Intermittent Problem - "STOP - CHECK COOLANT"

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Norbreck21a:
Guys,

I got the above warning a few times during the bad winter we had in Jan / Feb this year, and it came on again once last week, and again this morning.

The DIS display bonged and displayed - "STOP ! CHECK COOLANT".

I did the same thing as I did last time, i.e. actually check the coolant which as suspected was right between the MAX and MIN line (where it always is), so I don't think I've lost any coolant ? After turning the car off, and re-starting, the warning disappeared ?

My guess is that it's a bad sensor but which one ? The only other thing is when it happened last week, the outside temp was approx 2°C and the car covered in frost. This morning the ice warning was on again and the temperature was 3.5°C, so it would seem that it's only affected in cold weather ?

Anyone any ideas ?

Cheers

Andrew

Andy:
thier is a sensor inside the the coolant bottle..orobs that one that is faulty

Norbreck21a:
Ah cheers Maxitrol.

Any idea if these are cheap and easy to replace ?

richtung:
Its a well know problem on the MK4 - not sure on the MK5.

You have to replace the whole bottle which is less than a tenner from VW (im not sure if the bottle on the MK4 is the same as the MK5 - it does look the same)

Its not particularly hard to do, the hardest part i found was taking care not spill the coolant.

Hope this helps

Rich

QD MBE:

--- Quote from: richtung on November 08, 2010, 10:54:53 am ---Its a well know problem on the MK4 - not sure on the MK5.

You have to replace the whole bottle which is less than a tenner from VW (im not sure if the bottle on the MK4 is the same as the MK5 - it does look the same)

Its not particularly hard to do, the hardest part i found was taking care not spill the coolant.

Hope this helps

Rich

--- End quote ---

x2.

I replaced one on my MK4.

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