design guru
Active Member
- Joined
- Feb 28, 2004
- Messages
- 486
- Location
- Hampshire
- Car
- 2001 W220 Mercedes S320cdi & 2001 W208 CLK230K (SORN since 2008)
Hello,
It that time of year when the cold weather arrives and windscreens get frosted and just like clockwork my heating has decided to stop. All bloody summer it blew hot air.
Its a W220 S320cdi 2001 and I would usually link this to the thermostat but the car temperature sits nicely in 85, but the heater is only blowing cold air even when the heater is set to high/maximum. Could the thermostat still be faulty when inside gauge is showing the correct reading and cause this problem?
The other thing I noticed is when I pulled up and switched the car off I pressed the REST button hoping the heat would kick in but still only cold air.
Am I looking at the Duo valve as the main culprit in this situation?
I did loosed some coolant when the 3 way heater hose had a crack and i replaced it but would a loss of anti freeze cause the heating to stop?
Any help would be great, my heated seats are working on overtime at the moment.
It that time of year when the cold weather arrives and windscreens get frosted and just like clockwork my heating has decided to stop. All bloody summer it blew hot air.
Its a W220 S320cdi 2001 and I would usually link this to the thermostat but the car temperature sits nicely in 85, but the heater is only blowing cold air even when the heater is set to high/maximum. Could the thermostat still be faulty when inside gauge is showing the correct reading and cause this problem?
The other thing I noticed is when I pulled up and switched the car off I pressed the REST button hoping the heat would kick in but still only cold air.
Am I looking at the Duo valve as the main culprit in this situation?
I did loosed some coolant when the 3 way heater hose had a crack and i replaced it but would a loss of anti freeze cause the heating to stop?
Any help would be great, my heated seats are working on overtime at the moment.