Resetting electronic oil level sensor ?

[JMP]

Hi,
My oil level, checked using the hidden oil dip stick, is at the max but the onboard computer screen mention "+0.4".
Looks weird to me as - if I have well understood- it should read "+1.0" when the oil level is at the max.
I have asked at my BMW dealer and for them it is fine :smt017.
Any clue form your side ?
Do you know if it is possible to reset the electronic oil level sensor ?
Thanks !:smt023
JMP

[m3power]

Salut JMP, bienvenu sur forum et félicitation pour ton achat (j'ai été voir ton profil :-)). Est-ce que ta CSL ne viendrait pas du garage du Bac sur Paris?
Voici la réponse que j'ai trouvé sur le forum mais je t'avoue que je n'ai jamais testé :

the quick measurement, after oilservice and adding oil.

• it woks this way:
• engine has to be warm, oiltemperature over 60°C
• 1.park CSL horizontal
• 2.turn off the engine
• 3.go with BC to oillevel
• 4.start your engine and let it run for at least 2min. in idle
• 5.now push the Sport button, and keep it pushed

now it (should) shows you the actually oillevel in flashing numbers.
not flashing numbers show you the old longterm level.
what means the oiltemperature is to cold or your car isn't horizontal parked .
if the display shows only lines, measurement isn't ready.

@+

[Pip1968]

If it is any consolation the last time my car was in for an Inspection II at a BMW dealership the oil was replaced with the correct 8 litres (? correct me if that is the wrong figure) the electronic measurement still showed the level as a number below the 1.0 (full) level. They asked if I wished to have the sensor investigated/replaced and I said no, not to bother.

This to me typifies the poor efficacy of electronic sensors over a dip stick.

Pip

[mattCSLnut]

If it is any consolation the last time my car was in for an Inspection II at a BMW dealershipthe oil was replaced with the correct 8 litres (? correct me if that is the wrong figure) the electronic measurement still showed the level as a number below the 1.0 (full) level.

Pip

8 litres !?!? that's about 2.5 litres too much :banghead: p.s. You have been corrected

[JMP]

So "long term measurement" ie. the direct reading on the on board computer it giving "+0.4L".
in contrast, the "quick measurement" (actually not that quick...), using the process described my m3power -merci-, and also captured in the on-board booklet is giving "+0.8L".
according to the dip stick, the oil level in at the max, so the reading should be "+1.0L".
conclusion: the "quick measurement" appears better, but the electronic gauge is not very accurate. Better to remove the airbox from time to time for checking the oil level with the dip stick.
i am sure I just reinvented the wheel... :clown:

[mattCSLnut]

So "long term measurement" ie. the direct reading on the on board computer it giving "+0.4L".
in contrast, the "quick measurement" (actually not that quick...), using the process described my m3power -merci-, and also captured in the on-board booklet is giving "+0.8L".
according to the dip stick, the oil level in at the max, so the reading should be "+1.0L".
conclusion: the "quick measurement" appears better, but the electronic gauge is not very accurate.
Better to remove the airbox from time to time for checking the oil level with the dip stick.

... or better still do this :thumbs:https://nam3forum.com/forums/forum/c...em-m3-dipstick

[JMP]

great tip. too sad bmw did not thought about it...:hahaha: