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Chat Area => General Car Chat => Topic started by: GastronomicKleptomaniac on 19 July 2017, 17:26:35

Title: E39 530d... Advice?
Post by: GastronomicKleptomaniac on 19 July 2017, 17:26:35
Mate has an E39 530d on a T. Its done a hugely impressive 311,000 miles.

Hes now concerned at the amount of black smoke coming out of the exhaust when driving with gusto.

Once I finished telling him that its a diesel and they all do that, I changed air filter and oil separator. Its still sootier than a small bear on a mans hand... Is it just going to be due to mileage and thus wear or should I be digging deeper? :y
Title: Re: E39 530d... Advice?
Post by: Field Marshal Dr. Opti on 19 July 2017, 17:36:40
Tell him that all diesel cars are the work of Satan. :)
Title: Re: E39 530d... Advice?
Post by: ReLLaXX on 19 July 2017, 18:35:21
A few years ago I drove a 530D manual with over 630.000 km on the clock. De-cat but just a decent amount of smoke out of the tailpipe. My 2 cents say that there is something wrong with it.

Turbo/wastegate/injectors/temp sensor/MAF?

Sound like it runs rich, a lack of boost or one of the mentioned sensors beeing defective would explain it but you should definetely feel a difference in the way it pulls compared with a good one. The 3.0 D is a locomotive engine, when it runs well... It RUNS.
Title: Re: E39 530d... Advice?
Post by: henryd on 19 July 2017, 20:03:00
Mate has an E39 530d on a T. Its done a hugely impressive 311,000 miles.

Hes now concerned at the amount of black smoke coming out of the exhaust when driving with gusto.

Once I finished telling him that its a diesel and they all do that, I changed air filter and oil separator. Its still sootier than a small bear on a mans hand... Is it just going to be due to mileage and thus wear or should I be digging deeper? :y

Disconnect the maf and see if it improves things,it'll run better with none than a duff one.
Title: Re: E39 530d... Advice?
Post by: GastronomicKleptomaniac on 19 July 2017, 20:14:47
Mate has an E39 530d on a T. Its done a hugely impressive 311,000 miles.

Hes now concerned at the amount of black smoke coming out of the exhaust when driving with gusto.

Once I finished telling him that its a diesel and they all do that, I changed air filter and oil separator. Its still sootier than a small bear on a mans hand... Is it just going to be due to mileage and thus wear or should I be digging deeper? :y

Disconnect the maf and see if it improves things,it'll run better with none than a duff one.

Roger that! Will give it a go next time hes round.

It certainly goes well, I had a go earlier... But its the first one Ive driven so can't compare it.

Now I want an M5...

Chrers chaps!
Title: Re: E39 530d... Advice?
Post by: Sir Tigger KC on 19 July 2017, 20:17:09
They're good cars and I'm very pleased with mine!  :y
Title: Re: E39 530d... Advice?
Post by: Doctor Gollum on 19 July 2017, 20:44:39
They're good driving cars and I'm bored with mine!  :y
Fixed.
Title: Re: E39 530d... Advice?
Post by: Marks DTM Calib on 20 July 2017, 10:04:53
Most likely a clogged and gummed up inlet manifold
Title: Re: E39 530d... Advice?
Post by: STEMO on 20 July 2017, 10:16:43
Most likely a clogged and gummed up inlet manifold
You like cleaning them up, don't you? Very therapeutic, I believe  ;D
Title: Re: E39 530d... Advice?
Post by: TheBoy on 20 July 2017, 17:58:22
If its had servicing at the silly intervals suggested by manufacturer, the wear might be high by now.