Red Oil Light

Asked by May 24, 2016 at 03:32 AM about the 2007 BMW 3 Series

Question type: Maintenance & Repair

I have a red oil light appearing on mu instrument panel when I start my
BMW E90 320i.  However this light will disappear after about 15-30
seconds.  Further to this during the period that the red light is being
displayed it would sound as if the engine has loose tappets, and the sound
typically goes away when the light goes off. What can be the problem?   I
have done 303000 kilometers with the vehicle thus far.    The second
problem is also that the vehicle are loosing pressure from time to time and I
have been told that the VVT units have to be replaced and are hugely
expensive.

1 Answer

13,475

Right, VVT BMW, HUGE expense. LOW oil pressure cause all this time for a rebuild...188275 miles Faulty exhaust side hydraulic valve lifters (HVA) can cause a ticking noise after the engine is warmed up in some 2006-2008 models with the N52 engine. Some owners report the noise temporarily disappeared after a long highway drive or switching to different type of engine oil. As per one of the BMW service bulletins (SIB), the 12 exhaust side lifters must be replaced with updated parts ($1,200-$2,000 repair). In some cases the cylinder head also had to be replaced to completely resolve the problem. "The Valvetronic motor is used on BMW E90 models with a normally-aspirated engine. It is responsible for actuating an eccentric shaft that adjusts intake valve lift. The motor itself is pretty reliable and does not fail too often. However, you will have to remove it for other engine repairs and the gasket that seals the mounting surface of the Valvetronic motor fails and leaks oil. When repairs are performed on the Valvetronic assembly, the limit stops have to be relearned. You will need access to a BMW scan tool to do this procedure. The limit stops are the mechanical limit stop, end to end of rotation of the eccentric shaft. The DME (digital motor electronics) records these stops via the eccentric shaft sensor to determine mechanical adjustment limits of the eccentric shaft. With that said, when removing the motor to replace the gasket you are not changing the mechanical position of any Valvetrnoic assembly components, a relearn is not always needed. Now use this with caution and when in doubt, perform the relearn. Do your research and check with up to date repair information before beginning."

Your Answer

BMW 3 Series Experts

  • #1
    Tom Demyan
    Reputation
    5,190
  • #2
    Robert Charlson
    Reputation
    1,670
  • #3
    grolyate
    Reputation
    1,270
View All

Related Models For Sale

Used BMW 5 Series
537 Great Deals out of 15,517 listings starting at $1,650
Used BMW M3
36 Great Deals out of 2,084 listings starting at $5,495
Used Mercedes-Benz C-Class
906 Great Deals out of 28,407 listings starting at $2,001
Used Audi A4
338 Great Deals out of 12,428 listings starting at $1,899
Used Ford Mustang
581 Great Deals out of 38,990 listings starting at $1,895
Used Mercedes-Benz E-Class
713 Great Deals out of 22,801 listings starting at $1,450
Used BMW X5
337 Great Deals out of 15,594 listings starting at $2,400
Used BMW 7 Series
127 Great Deals out of 5,119 listings starting at $1,750
Used Honda Accord
1,118 Great Deals out of 72,447 listings starting at $1,100
Used BMW 6 Series
73 Great Deals out of 2,445 listings starting at $5,995
Used Dodge Charger
471 Great Deals out of 33,336 listings starting at $1,999
Used BMW X3
265 Great Deals out of 9,242 listings starting at $2,648
Used BMW 1 Series
52 Great Deals out of 1,011 listings starting at $4,500

Used Cars For Sale

2018 BMW 3 Series For Sale
5 Great Deals out of 5,599 listings starting at $30,895
2017 BMW 3 Series For Sale
154 Great Deals out of 4,475 listings starting at $23,900
2016 BMW 3 Series For Sale
47 Great Deals out of 1,331 listings starting at $14,991
2015 BMW 3 Series For Sale
94 Great Deals out of 2,572 listings starting at $14,499
2014 BMW 3 Series For Sale
295 Great Deals out of 4,733 listings starting at $11,979

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.