Hi all,
Can anyone tell me if it's possible to check the operation of the heater booster on a W210. I can't say I've ever noticed that it is working. I asked MB to diagnose it and they came up with a buster recirculation pump. It was indeed seized so I replaced it. I now get hot air when the engine is shut off and the recirc button is pressed. But I still don't notice a difference in the car warming up quicker on a cold day. I think there is a prob with the heater booster itself. Is it possible to get this unit appart and test it?
Can anyone tell me if it's possible to check the operation of the heater booster on a W210. I can't say I've ever noticed that it is working. I asked MB to diagnose it and they came up with a buster recirculation pump. It was indeed seized so I replaced it. I now get hot air when the engine is shut off and the recirc button is pressed. But I still don't notice a difference in the car warming up quicker on a cold day. I think there is a prob with the heater booster itself. Is it possible to get this unit appart and test it?
