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#1
03-26-2005, 06:12 PM
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What is your oil pressure at IDLE?
Anybody with an M103 engine wanna tell me what their oil pressure is that 80C and in Drive at Idle?
Thanks!
__________________
2006 BMW M5 "Heidi" @ 109,000 miles 2005 MBZ C55 AMG "Lorelai" @ 165,000 miles 1991 MBZ 300E "Benzachino II" @ 165,000 miles 1990 MBZ 500SL "Shoshanna" @ 118,000 miles (On the hunt for a good used M103 engine as of 6/10/23, PM me if you have one to sell!) 
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#2
03-26-2005, 06:25 PM
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1 Bar at idle once fully warmed up. Being at 80C doesn't necessarily infer the motor is warmed up.
__________________
'91 300-SEL
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#3
03-26-2005, 06:28 PM
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Righto....
yeah you are right... how about after a 15 minute highway trip?
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2006 BMW M5 "Heidi" @ 109,000 miles 2005 MBZ C55 AMG "Lorelai" @ 165,000 miles 1991 MBZ 300E "Benzachino II" @ 165,000 miles 1990 MBZ 500SL "Shoshanna" @ 118,000 miles (On the hunt for a good used M103 engine as of 6/10/23, PM me if you have one to sell!)
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#4
03-26-2005, 11:52 PM
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My cars are diesels, but I don't think that makes a difference. With the engine fully warmed up like being on the highway it should be between 1-1.5 bar. When the rpms get up to about 1500 your pressure should be pegged at 3 bar.
__________________
1999 MB SL500 (110,000 mi) 2004 Volvo V70 2.5T (220,000 mi) 2014 Tesla Model S 85 (136,000 mi) MBCA member
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#5
03-27-2005, 12:10 AM
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I agree, mine about the same a 86 300e
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#6
03-27-2005, 01:56 AM
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Yeah the M104s have a 10:1 compression ratio... maybe that has an effect on the pressure... (M103 has 9.1:1....)
__________________
2006 BMW M5 "Heidi" @ 109,000 miles 2005 MBZ C55 AMG "Lorelai" @ 165,000 miles 1991 MBZ 300E "Benzachino II" @ 165,000 miles 1990 MBZ 500SL "Shoshanna" @ 118,000 miles (On the hunt for a good used M103 engine as of 6/10/23, PM me if you have one to sell!)
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