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JasonH

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JasonH last won the day on July 6 2020

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About JasonH

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    BMW 535d

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  1. JasonH

    Steering rack replacement

    From what I remember lowering the subframe made it pretty straightforward. If you don't I think it would have been impossible but that is for the 6 cylinder diesel.
  2. JasonH

    Steering rack replacement

    On the 535d the subframe has to be lowered a few inches (and therefore the engine supported from above). Lowering the subframe really isn't that bad.
  3. JasonH

    ISTA+ issues....

    If the cable worked with DIS it will work with ISTA. However you may need the appropriate drivers installed. The drivers that made DIS work should do it.
  4. JasonH

    ISTA+ issues....

    Windows 10 has a nasty habit of messing with the comms port settings every so often. You need to go into the Device Manager and put the settings back.
  5. JasonH

    530d 2004 Turbo Problem

    The DPF will regenerate until it thinks the DPF is clear. I think that will mostly be based on exhaust back pressure readings. However once a regen is requested I think it will keep trying until it completes. Have a look at this website regard ECU files: https://cartechnology.co.uk/forumdisplay.php?fid=12
  6. JasonH

    530d 2004 Turbo Problem

    Well the behaviour you describe does sound like a DPF regen. When this happens the DDE does close the throttle valve (I'm not sure how much). It also injects diesel on the exhaust stroke to raise the exhaust temperature.
  7. JasonH

    530d 2004 Turbo Problem

    Your English is fine. To get an original file for the DDE you'll need to ask on a different forum. There are forums where people post the files. You might even find one with a stage 1 map on it ! A problem with the throttle value should generate a fault code but I think what you are seeing here is a symptom of the problem, not the cause of the problem. Although a clogged up EGR may cause some issues but you said you had that mapped out.
  8. JasonH

    Steering rack compatability.

    I don't think they're different but I can't be 100%. I do know this: you can use red ATF or CHF11S. BMW initially did some systems with red ATF and some with CHF11S then standardised on the CHF11S. There isn't much in it, the CHF11S is a bit better and better at lower temperatures. The pumps and racks can use either. If you read the fine print you can even mix the two but it isn't recommended. I replaced my rack a while back and my system used red ATF, the new rack had the green stuff in it. I flushed the system and went for red, no problem at all. The pipes had all sorts of part numbers and buying replacement pipes with the "right" part number was impossible so I went for something I thought would fit. As it turned out it fitted and had better routing that the "right" part. So I think they mucked about with all sorts of parts, fluids and racks but fundamentally it's all interchangeable.
  9. JasonH

    530d 2004 Turbo Problem

    I'm sorry I don't know what you mean.
  10. JasonH

    530d 2004 Turbo Problem

    You are solving a puzzle and these cars are like that. Some faults just don't raise fault codes. See if you can move the waste gate by hand. Hopefully you can do that on the car without taking it apart - you can on the 535d.
  11. JasonH

    530d 2004 Turbo Problem

    I can't see any cracks or evidence of cracks either (although there may still be some we can't see). If you do a Google image search on cracked 530d exhaust manifold you'll see how and where they crack. The swirl flaps make very little difference to performance whether working or not. Disconnecting the vacuum hose will leave them wide open (which is fine) but the car may report an emissions fault after a few miles. You do need to block the hose you take off the swirl flaps or you will have a vacuum leak. Swirl flaps are a huge issue if they fail and get ingested into the engine. Removing them and fitting blanking plates is the best solution there. You have given me another thought though. What if your turbo wastegate was sticking open when hot. You'd start off fine then lose turbo assistance when it sticks open. On mine at one point the wastegate got pretty stiff and needed exercising by hand to free off the internal carbon build up. The spring return is strong so it's hard to do by hand but once free you can open and close it by hand (with a rag wrapped around it so it doesn't dig into your hands too much).
  12. JasonH

    530d 2004 Turbo Problem

    The exhaust manifold on the 530d on the E39 was cast iron. On the E60 they moved to a stainless steel exhaust manifold to save weight and improve performance. Pretty much all the early E60 530d exhaust manifolds cracked, none got to 100,000 miles without cracking. Even replacements were cracking. There was a shortage of E39 cast iron manifolds because they bolt straight on. Now I think you can buy aftermarket new cast iron manifolds. I knew someone with a 530d E61 where the main dealer had diagnosed a failed turbo. The car was losing power randomly and sometimes would hesitate for seconds before surging forward. On this car the problem was the manifold, once replaced the car was perfect again. I'm mostly familiar with the 535d (twin turbo). These have a huge problem with the vacuum lines and pressure converters. The hoses are rubber and crack. Any vacuum leak and the car does not drive properly. I think the 530d is similar but with less pipework. The pressure converters (made by Pierburg) take the electrical control signals and control the vacuum. These have a habit of failing. The thing is a vacuum or pressure converter problem wouldn't make the exhaust noisy.
  13. JasonH

    530d 2004 Turbo Problem

    The DPF regen isn't that noticeable to most people. Power isn't really affected. A blocked DPF does of course affect power a lot.
  14. JasonH

    530d 2004 Turbo Problem

    It still sounds like a cracked exhaust manifold to me. It sounds like you have elimated the DPF. On your car the front box is the catalytic converter the box underneath is the DPF.
  15. JasonH

    530d 2004 Turbo Problem

    Yes the cracks open and close depending on the temperature of the exhaust manifold. Sometimes the car will be fine. Other times it will have no power or a nasty delay before you have power. If you can smell exhaust inside the car then exhaust gasses are leaking under the bonnet. You may have a partially blocked DPF too. That generally means if you are gentle the car might be OK but if you need any power the exhaust is too blocked and you'll have no power.
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