Question about 1998 Mercedes-Benz C-Class
Check the blower circuit breaker, the blower control fuse, the blower relay, and the blower itself. If the blower does not work on any speed, you will likely find that the control fuse has blown.
Posted on Jun 11, 2014
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Posted on Jan 02, 2017
SOURCE: a/c fans wont blow
If the fuse is blown for the blower then there is a short, that is not an answer, go to the blower and check to see that the blower motor connector has 12 volts to it when the blower is set to high speed on control, if it does then u need a new blower motor, if it doesn't then the control switch is defective or the blower motor speed control resistor is defective.
Posted on May 13, 2009
hello I'm an M.B. tech, sorry I thought I sent this yesterday but it is not in my solution box. If your vehicle is actually blowing hot air and not just ambient ait through the vents the only reason this could be is that coolant is entering the heater core all the time. Mercedes had 2 ways of doing this from that era. The earlier version had a vacuum water valve against the rear firewall. The other version had an electric valve called a mono valve by the battery tray. I would think it would be very likley to knock of a vacuum line doing an oil change but most likley you would have other problems as well. The water valve had a red vac, line going to it. Your vehicle probably has the electrical valve which is ublikley to get damaged during an oil change. most likley the diaphram is ruptured. There are 4 slooted screws on top of the valve. If you remove those screws you will gain access to the insert(plunger for solonoid). Take the rubber seal and stretch it out. Take a close look for tiny tear in seal. It is a very common problem with the monovalve type system. You can replace just the insert and it saves alot of money as compared to the price of the monovalve. hope this is helpful.
Posted on May 23, 2009
SOURCE: 1994 c280 mercedes benz a/c
center console unit has a vaccum leak.
do you hear the vaccum pump in the trunk cycling over and over?
take it to benz for service very very difficult to fix.
Posted on Jun 12, 2009
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