Thread: R320 Issues
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Old 07-03-2019, 06:11 AM
97 SL320 97 SL320 is offline
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Join Date: Jan 2012
Posts: 7,534
Wow, thanks for the details. Usually someone posts just a code number and says " tell me how to fix my car." It's also great you carry a scanner on the road.

I don't know these cars specifically but I'd be investigating if there is an improperly operating exhaust restricter flap. Some diesels do this to reduce emissions / lower warm up time. This might explain the " 13AF00 Soot content of the Particulate Filter is too high " , the " ash at 0g " is probably a time weighted calculation as I doubt there is a scale in the DPF.

I'd also be looking for the boost pressure sensor that is giving the 13 PSI reading. Hang a volt meter on the sensor and don't just rely on the scan tool readings. Sometimes when there is a fault, the ECM will substitute a value that ends up showing on the scanner.

Have a look on the ML, GL, G-Wagen, R-Class, Unimog, Sprinter forum.
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