Check Engine Light, Runs Rough and White Smoke?

Asked by Aug 23, 2015 at 05:32 PM about the 1995 BMW 5 Series 525i

Question type: Maintenance & Repair

I have a 1995 BMW 525I and the Check Engine Light Just came on while I was driving, it started running very rough and lots of white smoke. I think it is the Crank Case Vent Valve/Oil Separator System. What are your thoughts? I have been researching online for a while today and if that is the problem I can not find the part any ideas?

4 Answers

49,835

White smoke is a indication of a blown head gasket, coolant getting into the cylinders, / Blue smoke is oil burning in the cylinders, / Black smoke is air fuel / fuel delivery system.

1 out of 1 people think this is helpful.
60,755

Sounds like a blown head gasket or cracked head. HTH. -Jim

2 out of 2 people think this is helpful.
39,565

I have to agree with Jim, head gasket or cracked head.

2 out of 2 people think this is helpful.
115

white smoke is usual gaskets. too much water from exhaust gaskets too (head gaskets most likely ) BUT YOU CAN NEVER BE MISS CLEO AND PREICT UNTILL YOU INSPECT. Have a specialist diagnose your baby. Check pressure in exhaust and make sure your cat isn't clogged.

Your Answer

Add photo

Related Questions

5 Series

Looking for a Used 5 Series in your area?

CarGurus has 15,157 nationwide 5 Series listings starting at $1,877.

ZIP:

Search BMW 5 Series Questions

BMW 5 Series Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,940
#2 Michael Branan
Michael Branan
Reputation 770
#3 Robert Charlson
Robert Charlson
Reputation 670
View All

Related Models For Sale

Used BMW 3 Series
1,461 Great Deals out of 38,438 listings starting at $1,700
Used BMW 7 Series
165 Great Deals out of 5,889 listings starting at $3,400
Used Mercedes-Benz E-Class
586 Great Deals out of 23,560 listings starting at $1,450
Used Mercedes-Benz C-Class
884 Great Deals out of 32,550 listings starting at $1,750
Used Audi A6
149 Great Deals out of 7,505 listings starting at $2,495
Used BMW M3
65 Great Deals out of 1,922 listings starting at $4,350
Used Mercedes-Benz S-Class
196 Great Deals out of 6,367 listings starting at $2,995
Used Audi A4
265 Great Deals out of 11,548 listings starting at $1,333
Used Honda Accord
883 Great Deals out of 82,090 listings starting at $999

Used Cars For Sale

2017 BMW 5 Series For Sale
641 listings starting at $53,345
2016 BMW 5 Series For Sale
115 Great Deals out of 2,947 listings starting at $31,980
2015 BMW 5 Series For Sale
9 Great Deals out of 324 listings starting at $19,100
2014 BMW 5 Series For Sale
165 Great Deals out of 2,812 listings starting at $18,500
2013 BMW 5 Series For Sale
80 Great Deals out of 1,442 listings starting at $14,500