Coolant Top Up Warning
05-27-2009, 11:54 AM
#5
05-27-2009, 01:18 PM
#6
MBWorld Fanatic!
Correct... telling you to top up your coolant would be a result of the coolant level sensor reporting to the ECU that you are low on coolant... if you are saying you are not... it's possible the sensor is going bad... or it's as shardul said... you could be a little low on coolant because there is a leak or it's getting into your trans - a known problem on the '03/'04s
-m
-m
05-27-2009, 07:41 PM
#7
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GL550, C55, 335i Coupe, vintage Mustang
Just a little tidbit of information for you. The coolant level switch and washer fluid level switch are wired in series to the drivers front fuse box. The yellow/grey wire comes to the coolant switch from the fuse box. The brown wire on the coolant level switch goes directly to the washer tank, and the blue wire from the washer switch goes to the fuse box. I have seen on several occasions that the washer level switch has developed a small leak in the casing, corroding the connector, and not triggering a washer light, but a low coolant light. Good luck.
Nick
Nick
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05-27-2009, 10:18 PM
#8
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997TT, R8 V10+, G550, Plaid S
Correct... telling you to top up your coolant would be a result of the coolant level sensor reporting to the ECU that you are low on coolant... if you are saying you are not... it's possible the sensor is going bad... or it's as shardul said... you could be a little low on coolant because there is a leak or it's getting into your trans - a known problem on the '03/'04s
-m
-m
05-27-2009, 10:29 PM
#9
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2003 W211 E55, 2003 W220 S600
Just a little tidbit of information for you. The coolant level switch and washer fluid level switch are wired in series to the drivers front fuse box. The yellow/grey wire comes to the coolant switch from the fuse box. The brown wire on the coolant level switch goes directly to the washer tank, and the blue wire from the washer switch goes to the fuse box. I have seen on several occasions that the washer level switch has developed a small leak in the casing, corroding the connector, and not triggering a washer light, but a low coolant light. Good luck.
Nick
Nick
