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PointedThree :  Community forums : Mercedes-Benz Diesels : CORRECT OIL FOR 2008 W221 S320 CDI WITH DPF

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CORRECT OIL FOR 2008 W221 S320 CDI WITH DPF
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Posted 1/6/2009 10:20 AM
j4a24

Date registered: Dec 1899
Location:
Vehicle(s):
CORRECT OIL FOR 2008 W221 S320 CDI WITH DPF

BEFORE I BOUGHT THIS CAR AT ITS FIRST "A" SERVICE SHELL HELIX 229.5 ENGINE OIL WAS USED..THIS CAR HAS A DIESEL PARTICULATE FILTER..IT WAS THE WRONG OIL.....LOW ASH 229.51 SHOULD HAVE BEEN USED...IT DID 10000 MILES ON THAT OIL...DEALER CHANGED OIL AND OIL FILTER FOR ME AND SAID IT'LL BE OK..BUT THEN THEY WOULD SAY THAT...IS THERE DAMAGE DONE TO THE DPF OR ENGINE AS A RESULT..IT WAS PUT IN BY MERC IPSWICH....................THIS IS COMPUTER READOUT:

ASH CONTENT 15 %
SOOT CONTENT 77%
EXHAUST BACK PRESSURE SENSOR 1037 hPa
TEMP SENSOR UPSTREAM OF TURBO 137C
LAMDA 3.4
TEMP UPSTREAM OF DPF 116C
PRESSURE DIFF SENSOR (DPF) 4
FLOW RESISTANCE 0
EXHAUST GAS FLOW RATE 39.3 m3/h

HAVE I A PROBLEM NOW OR LATER?

THEY SAID DRIVING WILL CLEAN THE DPF????
#140093
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Posted 1/11/2009 7:10 PM
DUTCH
Administrator Doppelgänger




Date registered: Apr 2006
Location: US, GA, Atlanta
Vehicle(s): 2015 Audi Q7 3.0 TDI,2018 Sprinter
Posts: 9963
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RE: CORRECT OIL FOR 2008 W221 S320 CDI WITH DPF

j4a24 - 1/6/2009 10:20 AM


HAVE I A PROBLEM NOW OR LATER?

THEY SAID DRIVING WILL CLEAN THE DPF????


Can't answer the first one, but there is a software step in the driving that burns excess fuel to super heat the DPF to clean it out.
#140578 - in reply to #140093
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