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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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Old 10-23-2016, 02:02 AM
bmw4lifesa bmw4lifesa is offline
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Join Date: Oct 2016
Posts: 2
Mein Auto: 97 BMWE39 528i
bmw e39 rough idle and poor low end power

good day . wonder if anyone can give me some advice on my car's issue. I drive a 97 e39 528i auto.
Around a month ago , my car developed a misfire. Took it to a local bmw mechanic who put it on his diagnostic machine and then proceeded to change ignition coil on cylinder no 2 which sorted the car out . Ran perfectly for about 3 weeks and then developed the same symptoms of a misfire , took it back to the mechanic who then said it was a vacuum leak , but could not attend to the issue at that time. I then asked a mechanic friend of mine to have a look. We have checked all the ignition coils,done a compression test (175psi), replaced the ccv,(after doing a smoke test) checked all the piping for cracks or breaks, cleaned the O2 sensors, checked the MAF sensor, changed the spark plugs , reset the error code, which reads output satge oxygen,sensor heater, sensor 1, cylinders 1-3, before cat. Conv Z3 and 323I US only, this affects cylinders 1-6) but still no joy !! The car idles very roughly , and hesitates on acceleration , but is fine as the revs pick up , but as soon as you come to a stop the rough idle is there . Love the car , but not enjoying the drive at the moment !! any advice from someone who has experienced similar problems , or someone who can point me in the right direction. Sorry for the long story .
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Old 10-23-2016, 08:17 AM
Cheroot Cheroot is offline
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Location: Gateshead UK
Join Date: Oct 2016
Posts: 2
Mein Auto: 525i (2000)
Hi, I found this guy very good on youtube ( 50skid ) Have you checked DISA 'O' ring, or valve cover gasket. also Vanos could be part of the problem, hope you get it fixed.
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Old 10-23-2016, 09:49 AM
elahmad elahmad is offline
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Location: NJ
Join Date: Aug 2016
Posts: 146
Mein Auto: 2002 BMW 530i Sport Packg
Yeah it's your vanos unit man the seals go bad after 60k miles
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Old 10-23-2016, 11:49 AM
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computiNATEor computiNATEor is offline
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Location: Southern California
Join Date: Jul 2014
Posts: 1,944
Mein Auto: 2 x 530i Sport
Probably your Vanos seals, as others have mentioned. I am suffering the same problem (to a lesser degree) in my 143k-mile M54B30.
Nate J.

RIP, Seabiscuit - 03-11-03 530iA Sport, Sapphire Black/Black. T-boned 03-01-2017. 155,861mi.
Take 2 "Otto" - 04-25-2002 530iA Sport, Toledo Blue/Sandbeige. 142,000mi and counting.
Take 3 "Manuel" - 11/??/2001 530i5 Sport, Toledo Blue/Grau. 191,000mi and counting.
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Old 10-23-2016, 08:27 PM
mdrew mdrew is offline
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Location: hawaii
Join Date: Jan 2015
Posts: 88
Mein Auto: 1998 528i sports package
For what it's worth had a chrysler 300 that threw codes for misfire. I changed plugs, manifold gasket, ignition coil, fuel injector, turned out to be the egr valve.
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Old 10-23-2016, 09:42 PM
bmw4lifesa bmw4lifesa is offline
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Join Date: Oct 2016
Posts: 2
Mein Auto: 97 BMWE39 528i
thanks guys for the info and advice guys. I will only get a chance to work on the car over the coming weekend, but will be sure to keep you all updated on whats going on. Hope you all have a good week ahead. Cheers
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Old 10-24-2016, 08:22 AM
edjack edjack is offline
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Location: San Jose, CA
Join Date: May 2007
Posts: 13,351
Mein Auto: '97 540i 6 speed
AFAIK, no DISA on an M52.

VANOS cause is unlikely, since the problem only recently surfaced. Check here, too: http://www.beisansystems.com/index.html

Ed in San Jose '97 540i 6 speed aspensilber over aubergine leather. Build date 3/97. Golden Gate Chapter BMW CCA Nr 62319.
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