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Oil level sensor issues- help needed :(

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synthedup
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Oil level sensor issues- help needed :(

Post by synthedup » Fri Jan 19, 2018 2:45 pm

Hi all,

I seem to have developed a problem, a couple of weeks a go I got the oil light come on saying i needed to ass 1lt of oil and the engine management light come on at the same time.

I went to the garage who said the oil level sensor was throwing a fault code.

So this has been changed and new oil put in.

It was fine for a couple of days, now the oil sensor is again causing issues.

Once I let the engine warm up, press the oil check button and it shows full and then says ok. 5 minutes later i will check it again and although it says 'ok' it shows a different level. if i try and test it a 3rd time is says Error..

It then wont work again until the car has been stood for a while.

Anyone any ideas?

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ph001
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Oil level sensor issues- help needed :(

Post by ph001 » Fri Jan 19, 2018 3:53 pm

Criteria for ECU to display correct oil level is:

Coolant temp >60'C
Engine rpm > 1,500rpm
Yaw and pitch must be minimal (i.e. flat road, not going around bend etc)
Minimum refresh time is 20 mins (prob why you get an error if you try again sooner)

All a bit fickle. Dipstick much easier!
2007 E85 Z4 3.0Si manual :driving:
19" CSL's | Eibach Springs | Aeroskirts | Z4M front bumper | Clear brake light | ZHP | RCH+| Stubby

2004 E46 M3 coupe manual - gone but not forgotten.

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synthedup
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Oil level sensor issues- help needed :(

Post by synthedup » Fri Jan 19, 2018 5:56 pm

ph001 wrote: Fri Jan 19, 2018 3:53 pm Criteria for ECU to display correct oil level is:

Coolant temp >60'C
Engine rpm > 1,500rpm
Yaw and pitch must be minimal (i.e. flat road, not going around bend etc)
Minimum refresh time is 20 mins (prob why you get an error if you try again sooner)

All a bit fickle. Dipstick much easier!
Thanks so much for the reply!

20 minutes between tests?

That will explain why I am getting the error message after trying multiple times.

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Smartbear
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Oil level sensor issues- help needed :(

Post by Smartbear » Fri Jan 19, 2018 6:20 pm

synthedup wrote: Fri Jan 19, 2018 5:56 pm
ph001 wrote: Fri Jan 19, 2018 3:53 pm Criteria for ECU to display correct oil level is:

Coolant temp >60'C
Engine rpm > 1,500rpm
Yaw and pitch must be minimal (i.e. flat road, not going around bend etc)
Minimum refresh time is 20 mins (prob why you get an error if you try again sooner)

All a bit fickle. Dipstick much easier!
Thanks so much for the reply!

20 minutes between tests?

That will explain why I am getting the error message after trying multiple times.
You shouldn’t get an error warning just for checking the level, it must be 20mins after adding oil before the sensor reacts to the new level :thumbsup:
Rob
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e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold

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ph001
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Oil level sensor issues- help needed :(

Post by ph001 » Fri Jan 19, 2018 6:37 pm

I've had error come up before with repeated tests close together. Other times I haven't. Go figure.
2007 E85 Z4 3.0Si manual :driving:
19" CSL's | Eibach Springs | Aeroskirts | Z4M front bumper | Clear brake light | ZHP | RCH+| Stubby

2004 E46 M3 coupe manual - gone but not forgotten.

Image

synthedup
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Joined: Tue Aug 13, 2013 7:11 pm
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Oil level sensor issues- help needed :(

Post by synthedup » Sat Jan 20, 2018 2:07 pm

Anyone else any input on this? :)

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Silverzedtom
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Oil level sensor issues- help needed :(

Post by Silverzedtom » Sat Jan 20, 2018 2:48 pm

I check mine a lot and never seen an error. I don’t see why it would show an error even if 20 minutes hasn’t elapsed :?
E85 2.5si
F55 Cooper S

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