Oil 2004 BMW

Asked by Mar 13, 2017 at 08:27 PM about the 2004 BMW 3 Series 325xi Sedan AWD

Question type: Maintenance & Repair

Hello I added a quart of oil to my 2004 BMW 325xi while it
was running and my car started knocking and smoking.
Why? Is there any damage?  Thanks.

7 Answers

85,615

Once the oil ran down into the engine did the noise and smoke go away?

1 of 1 people found this helpful.
263,785

Where was the smoke coming from?

It did go away. I don't know where it came from.

85,615

Did you spill oil on the exhaust? If the engine is running smooth and there is no smoke your engine probably is OK.

I didn't spill any. It went away after I shut it off and started up later.

85,615

Maybe a bunch of oil got sucked up the PCV.

55,125

Un-metered air coming into the engine from an open oil filler cap will sometimes make them run rough. Do not add oil with the engine running.

1 of 1 people found this helpful.

Your Answer

3 Series

Looking for a Used 3 Series in your area?

CarGurus has 2,013 nationwide 3 Series listings starting at $995.

Postal Code:

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
45 Great Deals out of 649 listings starting at $2,449
Used BMW M3
4 Great Deals out of 109 listings starting at $14,990
Used Mercedes-Benz C-Class
143 Great Deals out of 1,500 listings starting at $4,495
Used Audi A4
51 Great Deals out of 634 listings starting at $1,995
Used Ford Mustang
13 Great Deals out of 1,094 listings starting at $3,995
Used Mercedes-Benz E-Class
43 Great Deals out of 578 listings starting at $2,390
Used BMW X5
39 Great Deals out of 961 listings starting at $4,500
Used Honda Accord
72 Great Deals out of 1,113 listings starting at $1,411
Used BMW 6 Series
7 Great Deals out of 116 listings starting at $11,077
Used BMW 7 Series
8 Great Deals out of 177 listings starting at $5,000
Used BMW 1 Series
8 Great Deals out of 127 listings starting at $7,200
Used BMW X3
51 Great Deals out of 532 listings starting at $3,084

Used Cars For Sale

2018 BMW 3 Series For Sale
16 Great Deals out of 312 listings starting at $46,247
2017 BMW 3 Series For Sale
28 Great Deals out of 142 listings starting at $30,995
2016 BMW 3 Series For Sale
12 Great Deals out of 101 listings starting at $25,994
2015 BMW 3 Series For Sale
66 listings starting at $24,894
2014 BMW 3 Series For Sale
27 Great Deals out of 257 listings starting at $16,900

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.