Oil in the Coolant (Radiator) CAR OVERHEATS

Asked by 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

1,995

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

BMW Z3 Experts

  • #1
    Tom Demyan
    Reputation
    430
  • #2
    Kelly Mayo
    Reputation
    250
  • #3
    Sleveillee
    Reputation
    230
View All

Related Models For Sale

Used BMW Z3 M
91 listings starting at $9,500
Used Mazda MX-5 Miata
57 Great Deals out of 4,208 listings starting at $2,088
Used BMW 3 Series
1,124 Great Deals out of 34,093 listings starting at $1,209
Used Porsche Boxster
42 Great Deals out of 1,266 listings starting at $4,995
Used Chevrolet Corvette
113 Great Deals out of 16,308 listings starting at $3,995
Used Ford Mustang
342 Great Deals out of 41,798 listings starting at $1,488
Used BMW M3
28 Great Deals out of 1,829 listings starting at $5,495
Used Mercedes-Benz SLK-Class
45 Great Deals out of 1,355 listings starting at $1,492
Used Porsche 911
123 Great Deals out of 5,277 listings starting at $10,099
Used Honda S2000
5 Great Deals out of 360 listings starting at $6,900

Used Cars For Sale

2000 BMW Z3 2.3 Roadster RWD For Sale
49 listings starting at $3,700

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.