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#2
03-28-2008, 03:38 PM
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Judging from the many W126ers from that era I have driven, expect 3 bar all the time, to be normal, dipping to 1 1/2 to 2 bar when idling at a red light sometimes, then jumping back up to 3 bar when you pull away and drive nomally again
Does that help?
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 1991 560 SEC AMG, 199k <---- 300 hp 10:1 ECE euro HV ... 1995 E 420, 170k "The Red Plum" (sold) 2015 BMW 535i xdrive awd Stage 1 DINAN, 6k, <----364 hp 1967 Mercury Cougar, 49k 2013 Jaguar XF, 20k <----340 hp Supercharged, All Wheel Drive  (sold)
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#3
03-28-2008, 03:39 PM
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I will interject as I had the top-end redone last year and replaced a failed oil pressure sending unit a month ago.
These are readings with 10W-30 dino (non-synthetic) oil: Startup - 3 bar...pretty much pegged at "3" until the motor warms up. (btw, "startup" implies cranking up the car, not just twisting the key to the "II" position. If the gauge pegs to "3" and the engine isn't running, then the sending unit is bad.) Once warmed up and the engine is at idle, my gauge readings hover from 2 - 2.5 bar. Goes back up to 3 bar if the engine revs are anything above idle. I might add, in the years prior to the gasket replacement (and original sending unit), I saw readings around 1.5 - 2 bar at idle...but always pegged at 3 when proceeding at above-idle revs.
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2009 ML350 (106K) - Family vehicle 2001 CLK430 Cabriolet (80K) - Wife's car 2005 BMW 645CI (138K) - My daily driver 2016 Mustang (32K) - Daughter's car
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#6
03-28-2008, 03:54 PM
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Quote:
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"It's normal for these things to empty your wallet and break your heart in the process." 2012 SLK 350 1987 420 SEL
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