
1990 Mercedes-Benz 420SEL 4.2L Heating System
1990 Mercedes 420 SEL (126) no heat after 2-3 minutes of driving. Heat works after engine started and gets weaker after a little while, every time. New mono valve (two times!), aux pump running, blower works OK, engine temp OK, thermostat not "lazy", fuses OK....
FIX posted 11/15/2014
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Message Closed w/FIX
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VIN | WDBCA3309L |
Engine | 4.2 L / 8 cyl / GAS |
Trans | 4-speed Automatic |
Delivery | Fuel Injection |
Affected | Heating System |
Conditions | No Heat |
Message Closed w/FIX
Vehicle Data
1990 Mercedes-Benz 420SEL
VIN | WDBCA3309L |
Engine | 4.2 L / 8 cyl / GAS |
Trans | 4-speed Automatic |
Delivery | Fuel Injection |
Affected | Heating System |
Conditions | No Heat |