Oil in the Coolant (Radiator) CAR OVERHEATS

Asked by neoreundoer Mar 31, 2010 at 11:10 AM about the 2000 BMW Z3 2.3 Roadster RWD

Question type: Maintenance & Repair

The car overheated and a foamy water/oil misture (mayonaise like) came out of the radiator overlow.  The shop diagnosed and replaced the head gasket and flushed the cooling system.  After 1000 miles, changed the oil and found some oil again in the coolant.  Shop said it would take time to get out all the oil.  WELL with very little use I have oil in the coolant again which causes a cooling/overheating problem.  There is no water in the engine oil.  Oil from the engine is getting into the cooling system.  The engine runs perfect  Easy starting and no missing.  ANY IDEAS WHERE THE OIL IS COMING FROM??????  

2 Answers

5

Mate, Like your shop that did the repairs on your Beemer said, it will take a while to get rid of the mayo out of your cooling system. It is more than likely residual oil, and the mayo will get everywhere. It will be a warranty claim if the workshop didn't do a proper job anyway. Don't stress, Andrew

3,315

it will never fully be out.all the oil that was in your heater hoses,heater core or any place there was oil.ive done head jobs and repalced every hose and heater core,radiator,expasion tank and flushed 4 times and still was present.but never came back for engine problems just complaining of oil residue in coolant.so ya dont worry about it.

Your Answer:

CarGurus Experts

  • #1
    bmwmastertech4hire
    Reputation
    380
  • #2
    Sleveillee
    Reputation
    350
  • #3
    BoholMark
    Reputation
    320
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used BMW Z3 M
7 listings starting at $18,888
Used BMW 3 Series
66 Great Deals out of 1,237 listings starting at $3,995
Used Mazda MX-5 Miata
87 listings starting at $8,496
Used Porsche Boxster
10 Great Deals out of 53 listings starting at $15,888
Used BMW M3
9 Great Deals out of 82 listings starting at $15,850
Used Chevrolet Corvette
29 Great Deals out of 593 listings starting at $10,989
Used Ford Mustang
61 Great Deals out of 1,603 listings starting at $6,500
Used Porsche 911
17 Great Deals out of 224 listings starting at $26,900
Used BMW 5 Series
21 Great Deals out of 303 listings starting at $2,900
Used Audi TT
4 Great Deals out of 44 listings starting at $9,999
Used Mercedes-Benz SLK-Class
6 Great Deals out of 39 listings starting at $8,000

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. Content will be removed if CarGurus becomes aware that it violates our policies.