Saving an e70 ..with some questions

[Nella11]

Ok you guys all know that I'm slowly but surely busy to repair a accident damaged e70 50i.
Vechile was bought at a bank repo auction as a non runner.
I was very blessed that engine wise this car is fantastic..
Here's a fewpics of her current state....sorry for the poor pic quality

As you guys can see...theres still a lot of work to be done.
Panel gabs etc are horrific at this stage but everything will be aligned decently at the panel shop.
Only reason I have assembled everything is to make certain we have all the required parts.
I'm still short of some parts..will order them next week from the agents.

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I'm currently having a issue with the windscreen and headlight washer pumps.
Not one of the 3 are working...checked the fuses and that seems ok.
Will check all the fuses today just to make certain.
What worry me is that I don't hear any relay activating when I pull or push the wiper stalk.
Any advice would be greatly appreciated on this.

 

[KingKalie]

:bravo: Keep it up

 

[zaleonardz]

diagnostics to confirm.

However, based on the damage, I would check for a ground, but your going to be poking around for days where diagnostics would give you a much better clue

 

[Solo Man]

Remember a problem i had with my first X5 E53 which had the problem the lights would go slightly dimmer when idling, also some lights on the dash would come on. Asked around but could not get an answer. This problem lasted about a year. I even replaced the battery but no peace. Then i decided this is it, i have to find the problem. Started in the boot and removed the spare wheel and pump cover under the spare wheel. Tightened every bolt i could find and when i tightened the earth cable to the body in the boot i found i could ever so slightly tighten it, just enough to made me think i have found the problem. Voila! that was it. Problem solved! Only joy from then on! (I had before laid an earth strap from the engine to the body but that did not help as the problem lay at the main earth cable to the battery) What i am trying to say is that as said above, it might be an earth problem as per zaleonardz.

 

[Nella11]

Thanks guys I will start and check everything..
Will do another scan today.
Just need to stop driving it ....that v8 sound is addictive:smilebounce:..and get it into my workshop and start with fault finding.
"Luckily" it's only the washer pumps and then also the button that do the rapid demist/defrost on the windscreen that's also dead.
Everything else working perfectly.
Here's a very helpful link that gives wiring diagrams on Bmw
https://www.newtis.info/tisv2/a/en/

 

[Nella11]

Ok these are the current fault codes..
This screen really worrys me because it wasn't there and it also don't want to reset/clear

Then this one as well

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The D36A code did clear.
The others stay there.
I don't have a clue where to go from here
:dunnoanymore:

 

[zaleonardz]

Forget about the washer pump for now, and focus on your CAN2.

If you read that, you will see that it cannot comm with the HKL, which is ride height control, and as such that could be causing the transfer case fault.

I would check your shocks for any torn off/broken wires.

I am not too sure if the E70 has byteflyte on the shocks just yet, but if it is shorting out comms, you are going to get a myriad of issues down the line.

 

[Nella11]

Thank you very very much Zaleonardz
Ok at least now I now what to look at.
Funny thing is that when I took the left front wheel off the air suspension pump did start running...probably trying to get the car level .
I will start at the left front wheel well first...maybe I damaged or pulled a plug out by mistake while I was working there.
Even though my tester is a great help....it doesn't explain the fault code unfortunately ....
How did you get that it has something to do with the ride height control?
And again.. Thank you very much for your help...i really do appreciate it

 

[Nella11]

Had time yesterday to do some more tests.
Tested the rear air suspension by lifting the front of the vechile a bit.
The air compressor did kick in after a lot of lifting and lowering.
Then according to internet the HKL module is for the automatic tailgate.
Nothing wrong with that ....works perfectly.
I'm starting to think/hope that the system locked a fault when I pulled the fuses trying to sort the washer issue. The scanner I have can read the HKL module but can't delete the fault codes on it for one or other reason. On all the other modules I have the option to clear the codes...but not on that one.
There's also no warning lights at all on the dash.
I will definitely need to get this x5 to someone that can sort a few issues as soon as the panelbeaters are finished.
There's some menus missing on the I drive..for example I can't set the flickers to give only 3 flashes...the vechile dont lock its doors when driving off....no settings for visual signals when you lock/unlock the car and also if I have a warning on the dash it doesn't register on the I drive.
So a few things still to be sorted

 

[DannyBoyOPC]

Not sure where your based, but if you want to bring the car around I can clear the faults for you and we can check again what comes back

Pm me

 

[Picard]

Looking good. Enjoying this thread.

 

[Nella11]

Thank you very much...thats really a very kind gesture from your side.
I'm from up north polokwane...but will happily drive her to gauteng if needed...any excuse to take a drive in her is a good one:smilebounce:
Let me just first sort out the last of the cosmetic repairs.

 

[byaru1]

Ok you guys all know that I'm slowly but surely busy to repair a accident damaged e70 50i.
Vechile was bought at a bank repo auction as a non runner.
I was very blessed that engine wise this car is fantastic..
Here's a fewpics of her current state....sorry for the poor pic quality

As you guys can see...theres still a lot of work to be done.
Panel gabs etc are horrific at this stage but everything will be aligned decently at the panel shop.
Only reason I have assembled everything is to make certain we have all the required parts.
I'm still short of some parts..will order them next week from the agents.

---

I'm currently having a issue with the windscreen and headlight washer pumps.
Not one of the 3 are working...checked the fuses and that seems ok.
Will check all the fuses today just to make certain.
What worry me is that I don't hear any relay activating when I pull or push the wiper stalk.
Any advice would be greatly appreciated on this.

---

You really are the man. Maximum respect!!

We have an e70 2007 3.0si and i can assure you that with the trouble its given us so far, I could never get around even touching an accident one even if it were donated free with some spare cash to spare



Sent from my SM-N960F using Tapatalk

 

[Nella11]

Small update. .
The washer pumps really bugged the crap out of me. ...
Hoping that it might be that the pumps are just stuck due to standing dry for a long time after the accident, I stripped off everything to get to the pumps this morning. .
And this is what I found...

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And off course the other wires was broken off right inside that main harnessmgwaiting:

Well had to remove a lot off tubberware to get access to that main harness.
Open it up and located the other "missing" wires.

Out came the soldering iron ,

Unfortunately I didn't had the same coloured wires but I did had the right thickness. .joint in some extra wire because there was pieces missing.
After I have sealed off all the joints with first crimping sleeves, then rubber tape and lastly some cloth tape, I was happy.

Gave it a descent wash while I was busy there to get rid off all the mud and crap.
Reassembled everything and am glad to report all pumps are working 100%:tiptoe:

 

[CA_130]

Well done man :bravo:

Loving this rescue thread

 

[Twinz]

Well done. That was a huge fix which could have caused other issues. Wonder how the wires broke like that since they were all taped together in that bundle...rubbed against something?

 

[Nella11]

I'm not sure...It seems like it shaved against something.
Someone tried to do something there because the washer bottle wasn't secured correctly. .It have two bolts going through the fender to secure the tank..
There was nothing there so the whole tank just basically hanged by its wires:rage:.

Well another update...
The demist button that didn't work this time.
Did a lot off reading and couldn't find one case of someone that had to replace a demist flapper motor on an E70.
So took my diagnostic machine and started to look if I can find something on the flapper motors.
Eventually I came across a screen that tells me by how much percentage each one off the air vent flaps are open or closed.
Switched between upper and lower settings and luckily all the motors were working .
That was a huge relief because I wasn't up to it to take out the dashboard to get to the flapper motor.
So next thing I started to take out the complete controle unit.
Firstly you open the clove box. ..then remove the centre air vent.

Then you have two phillips screws that needs to be removed..very very carefully I pulled out the complete control unit with its trim.

I removed the control unit from the trim peice by unhooking the 4 top and 4 lower clips securing it to the trim.

Be very careful with this ribbon connector. ..It gave me a lot off hassle with the re installation

Now I opened up the unit by unscrewing the 8 torx T6 size screws.
And upon opening it I immediately saw where my problem was...

That shiney spot on the pc board I'm pretty certain is spilled coke. ..because it's stickey and also acidic because it actually started to form corosion on one of the contact points. And that just happened to be the demister button's contact point.

Very gently cleaned everything with a mild detergent.
Also washed the front part yo get rid of the stickiness on some of the buttons. Obviously also caused by spilled cool drink.

While I was cleaning the small fan and motor that measures the inside temp...I noticed that the pc board have these 4 very small holes that was blocked with dust.
I cleaned it out because it obviously have something to do with determining air quality inside the car.

Unit totally striped...and ready to be cleaned and reassembled

Reassembled everything and put it back. ...4 times
The ribbon connector didn't made good contact and also some of the buttons as well...
Nothing a bit of contact spray didn't solve.
One more thing fixed

 

[husaindindar]

It must be extremely rewarding after getting these things fixed one by one.


Awesome stuff man. Mad respect!:cartel:

 

[Picard]

Yeah...Great work! Thanks for posting. Makes for interesting reading.

 

[PLV]

Wow, fantastic work. Great job!

:thumbs::thumbs: