Dieselman
Banned
- Joined
- Jul 13, 2003
- Messages
- 34,198
- Car
- Peugeot 403 Convertible
I thought it was about time for a Mercedes related thread, so...
The other night I went to check something on the car and out of curiosity turned the electric cooling fan. (I'm like that..
)
The two fans are linked by a drive belt (or should be) but my slave fan didn't turn with the powered one so I decided to investigate.
Remove the plastic guard in front of the fans.
Lift out the clamps holding the radiator in place and the four bolts holding the bonnet slam panel down and the one at the front near the horn, then remove the panel.
Next remove the clamp bolts holding the power steering cooler tube down, otherwise the fan motor won't clear it.
Undo two bolts holding the top of the fan unit against the A/C condenser. remove the small plastic cover at the top L/h side covering the a/c filling valve and fan connector and undo the connector.
This will be very stiff due to corrosion on the pins.
When refitting this grease the connector before connecting together, it will protect it from water ingress.
Pull the power steering cooler up and forwards and lift out the fan unit, which will reveal debris in the condenser fins.
This is a good time to inspect it for possible leaks. Mine was in good condition.
Unbolt the condenser and pull forwards to inspect the radiator behind.
Five minutes with a vacuum cleaner and crevice tool cleaned all the debris out.
The fan minus belt will look like this.
Wind the belt back on and refit everything to the car.
I'm not sure why the belt had come off but it was in good condition. I'll keep an eye out for it coming off again.
To test the fans run the engine and turn on the a/c. With a hot engine they should run slowly then speeding up as the a/c pressure builds.
The other night I went to check something on the car and out of curiosity turned the electric cooling fan. (I'm like that..
)The two fans are linked by a drive belt (or should be) but my slave fan didn't turn with the powered one so I decided to investigate.
Remove the plastic guard in front of the fans.
Lift out the clamps holding the radiator in place and the four bolts holding the bonnet slam panel down and the one at the front near the horn, then remove the panel.
Next remove the clamp bolts holding the power steering cooler tube down, otherwise the fan motor won't clear it.
Undo two bolts holding the top of the fan unit against the A/C condenser. remove the small plastic cover at the top L/h side covering the a/c filling valve and fan connector and undo the connector.
This will be very stiff due to corrosion on the pins.
When refitting this grease the connector before connecting together, it will protect it from water ingress.
Pull the power steering cooler up and forwards and lift out the fan unit, which will reveal debris in the condenser fins.
This is a good time to inspect it for possible leaks. Mine was in good condition.
Unbolt the condenser and pull forwards to inspect the radiator behind.
Five minutes with a vacuum cleaner and crevice tool cleaned all the debris out.
The fan minus belt will look like this.
Wind the belt back on and refit everything to the car.
I'm not sure why the belt had come off but it was in good condition. I'll keep an eye out for it coming off again.
To test the fans run the engine and turn on the a/c. With a hot engine they should run slowly then speeding up as the a/c pressure builds.
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