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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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  #1  
Old 01-03-2014, 05:25 AM
meelisk meelisk is offline
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Location: Estonia
 
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Mein Auto: 1999 BMW E39 530D
530d 99' Stalling under full throttle

Hi,

i recently bought a e39 530d and could not resist and got it chipped...(to 160kw on paper) Now the problems started...
When i throttle up from low rpm and go full throttle, the engine stalls, what feels like at the peak of torque, at ~3000 rpm +/-
Ive change the fuel filter, high-pressure pump. (And the turbo, wich broke saddly) The In-tank pump and the bottom pump were changed by the previous owner ~2 years ago.

My repairman says that we should check the injectors next.
Said something about the injectors having 3 different stages and that on the third(full throttle) they may not perform well and cutt off.
Tho when i go full throttle, let it to 2500rpm, lift my foot abit and then go full throttle past 3000+rpm the car doesnt stall.
And the car goes pretty fast... was comparing the acceleration with a x3 3.0sd(210kw) and i was being left behind very slowly and little.
He also swapped the brains of the engine for another one and it still stalled.

Any toughts from you guys on any expirience with such problems?
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  #2  
Old 01-03-2014, 05:52 AM
Themysterye39 Themysterye39 is offline
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How many miles are on the car?
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  #3  
Old 01-03-2014, 06:04 AM
meelisk meelisk is offline
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Mein Auto: 1999 BMW E39 530D
About 300+k kms so erm. About 200k miles
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  #4  
Old 01-03-2014, 06:06 AM
Themysterye39 Themysterye39 is offline
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If they are original injectors I would definently give them a cleaning or replace if you want.
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  #5  
Old 01-03-2014, 06:32 AM
meelisk meelisk is offline
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Mein Auto: 1999 BMW E39 530D
hope it fixes the problem.

I'd really like to find someone with the same problem and get to know how he got that fixed... no luck on english forums, but searching german ones i atleast found disccusions on the same topic tho no luck there much, except one guy posted that its 90% the injectors. My germans not that good, so i hope to get help from here

Oh and sometime ago... my engine stuttered twice on one day, like you would start moving with 3rd gear(No power). tho i was moving and the car should have blasted away. idk, never happened after that(almost a month ago) and forgot the whole incident.

OH and when i lets say throttle my car up and i get to the tourge sweetspot i lift the foot to idk 80/90% of throttle and let it accelerate past the 2800 rpm or so and full throttle again i bypass tha stall and i can rev til 5k rpm's and then i can switch the gear up and then the revs are above the stall rpm limit on full throttle, and i can accelerate til the end, in every gear.
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  #6  
Old 01-03-2014, 06:32 AM
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DennisCooper! DennisCooper! is offline
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Hi,

Who did the 're-map' of the ECU? Was it a 'custom re-map' specifically done on your car with before and after rolling road analysis? or, was it a case where you purchased a re-map from a 'specialist' who came along (or you took to their garage) and plugged in their laptop and a short while later told it was all done and away you went?

If the first, it's possible the specialist doesn't know which parameters to change on BMW Diesels and this particular engine etc. By changing 'some' parameters, and not others, it's possible issues like this could occur. One common aspect which is changed easily is the fuelling and there's plenty of so called 'specialists' out there who'll simply turn up the fuelling and not many or any other parameters in order to have the outcome of more power.

Have the specialist return the car to standard and see if the issue still occurs? if it does, then you have other issues to look at in the engine, if it doesn't cause issues, you know you had a poor re-map specialist.

I always recommend the higher end, more knowledgeable remap specialists who know a hell of a lot more about these things than all those adverts you see where a 'garage' will 're-map your car' due to potential scenario's like you have. There's way too many 'remap' places out there who don't know much about what they're actually doing at all unfortunately. I don't know who the higher end, reputable and excellent specialist remap companies are in Estonia, but I suggest you contact specialists such as Evolve, DMS Automotive, E-maps in the UK, Manhart Racing in Germany, ESS Tuning in Norway, Schmiedmann in Denmark to find out more as all of these specialists have extensive experience with re-mapping and importantly all have an excellent reputation.

Cheers, Dennis!
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  #7  
Old 01-03-2014, 06:36 AM
Themysterye39 Themysterye39 is offline
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It wouldn't matter about the re mapping of the ecu if he said he swapped the computer
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  #8  
Old 01-03-2014, 06:36 AM
Themysterye39 Themysterye39 is offline
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And had the same problem
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  #9  
Old 01-03-2014, 06:42 AM
meelisk meelisk is offline
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Mein Auto: 1999 BMW E39 530D
Thanks for the reply,

well.. it was a guy who came with a laptop, downloaded my old settings... went away for an hour+ and came back... and uploaded the new settings.

Well i wouldnt call him an amateur, hes quite known and my mechanic knows him... lets say he did everything right... for now...

The mechanic whom im visiting put his own chipped ecu on my car... (wich he had selfmade for his own 530d and had been chipped for 180kw(241hp?) and same problem on my car)

He also tried to read the injectors, but said its difficult for him, i need the injectors taken out and tested.

So i quess the injectors cant cope with the new fuel pressure, is that possible? im not that good at mechanics

Last edited by meelisk; 01-03-2014 at 06:43 AM.
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  #10  
Old 01-03-2014, 06:43 AM
Themysterye39 Themysterye39 is offline
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We'll see what he has to say about the injectors then take it from there that's all I can say
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  #11  
Old 01-03-2014, 06:44 AM
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DennisCooper! DennisCooper! is offline
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Hi,

I missed that bit!

Meelisk - sounds as though you have some fault finding to do ! I'm in the same position and am booked in a few days time to have my codes read etc.

Good luck!

Cheers, Dennis!
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  #12  
Old 02-18-2014, 04:48 AM
meelisk meelisk is offline
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Location: Estonia
 
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Mein Auto: 1999 BMW E39 530D
So its been a while....

got my injectors refurb. and cleaned...
The stalling dissappeared for a day then it was back again....


I will see another mechanic with the issue, see what he thinks of that....

till then
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  #13  
Old 02-18-2014, 05:30 AM
poolman poolman is offline
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Mein Auto: 525i station wagon
Have you checked your DISA Valve? Another thought--how are the cat's ,,they may have been OK with the old settings,,but not letting the added exhaust gasses escape as well now--might be getting some back pressure

Last edited by poolman; 02-18-2014 at 06:36 AM.
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