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E300 W210: Hi Marty, My 1999 E300 turbo diesel intermittently…

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Hi Marty, My 1999 E300 turbo...
Hi Marty,
My 1999 E300 turbo diesel intermittently blows hot hot air through the side vents, even if the A/C is on and trying to cool the rest of the car. I got codes (from 1 to 8) 5,0,1,10,48,15,02,03 and E61 234, then E FF.
Any ideas?
Submitted: 8 years ago.Category: Mercedes
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Answered in 6 hours by:
11/15/2014
Mercedes Mechanic: Marty, Mercedes Technician replied 8 years ago
Marty
Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 57,141
Experience: Bosch Certified Master Tech. Over 35 years experience.
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Hi, on the first 8 codes you listed, are those the actual values? They don't seem to make sense.

Marty
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Customer reply replied 8 years ago

Hi Marty,

Those are the numbers that were on the display. It was a cold day and the car had been running for a minute or two.

Customer reply replied 8 years ago

My display is set for celsius temperatures, not fahrenheit

Mercedes Mechanic: Marty, Mercedes Technician replied 8 years ago

Hi Bruce, #7 is your refrigerant pressure. You should be reading at least 7 bar. I'd evacuate and recharge the system and see if that evens out your vent temperatures. If the system is undercharged it can blow cold in the middle and warm on the sides.

Let me know if you have any questions.

Marty

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