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Discussion Starter · #1 ·
Well, nearly 1000 miles into E34 ownership I continue to be smitten with this amazing car. It is such an honour and priviledge to pedal such a machine.

However, I have now compiled a list of bits and bobs on the car that are not operating correctly or are broken and was hoping that I could list them here and then get some advice from owners with similar experiences. I hope this is ok, I thought it better than posting several, individual troubleshooting threads.

In no particular order:

1) The drivers side wing mirror is slow and really struggles in the upward direction. Would this be worn gears behind the glass, can they be greased, or if they are nylon, cleaned?

2) I have an annoying creaking/rattle that runs across the roof in the portion between the top of the windscreen and in front of the sunroof. It happens whilst driving over pretty much any road surface. I can live with it but need to know if it is normal or otherwise!

3) The drivers side headrest will not engage up or down even though I can hear the motor trying to operate the mechanism. Is the mechanism easy to get to for inspection, or does it involve a costly strip down of the seat?

4) Both dishes on the rear wheels need refurbing. Is this a specialist job for these forged wheels or can any good wheel restorer with a good reputation do it?

5) The check control reset toggle/button doesn't appear to work? When I installed the new chain tensioner a few weeks ago, I removed all the washer bottles and now have a washer fluid warning in the display that I can't erase? Pressing the button does nothing, is there a way I can fix this?

6) Keeping the washer system theme going, normal spray does not work when I pull back on the stalk. Pushing the button in gives me intensive spray, but this is also intermittment. Does this sound electrical or simply blocked pipes?

7) The headlining is beginning to show signs of becoming unstuck in places. It's not hanging by any stretch of the imagination, but it isn't snooker table top smooth in the corners and along the leading edges, both front and rear. Same goes for the parcel shelf cover. Can this be removed easily without tearing and re-glued into place?

8) Finally, I have some sort of air con fault. The centre console switch does nothing when I press it (no light comes on). Does this mean an isolated switch problem, or does it mean the whole system is down. The air con was last fixed roughly 4 or 5 years ago if I remember correctly from reading the history. Can I see if the clutch engages on the compressor in any way?

That's all the problems I can find so far on the car, not bad I don't think considering it's age, although it is in for service this week and I await the Indy to write me a nice long mechanical list that needs addressing too!!

Cheers guys
Rob
 

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Discussion Starter · #2 ·
Erm, I not sure what happened there, how on the earth have I manged to post the same topic 3 times? When I tried to post the orignial topic it said I wasn't logged in, so I duly logged in and hey presto, 3 topics?
Can I delete 2 of them?!!!
 

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8) Finally, I have some sort of air con fault. The centre console switch does nothing when I press it (no light comes on). Does this mean an isolated switch problem, or does it mean the whole system is down. The air con was last fixed roughly 4 or 5 years ago if I remember correctly from reading the history. Can I see if the clutch engages on the compressor in any way?
Could well be the system has lost gas due to a leak - seems quite common on these for crap to build up behind the fan and corode the condenser at the front. When I got mine it had a seized fan at the front and a hole in the condenser. Bought a new one from ECP and a new receiver/dryer and seals and fitted it myself and got my mate to re-gas it. If the system is left open for any amount off time its best to replace the dryer apparently. Just make sure if you do need a new one the ECP give you the right one - on the M5 its slightly shorter condenser than normal e34's as you have an oil cooler directly beneath it. Once it is working make sure u use it regularly to keep the seals from drying out.

Best bet is get an aircon specialist to do a nitrogen test on it to check for leaks. Also a tell-tale is normally if the previous owner had problems they tend to put a flourescent dye into the air con to illuminate leaks if they do occur. Hopefully it might just be dried out seals.
 

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1) Mirror, you really need to strip the mirror & investigate further.
you may get away with a donor mirror internals from another E34 or if
you have later mirrors..an E36 mirror internals will match.
Beware however, if you have memory seats/mirrors then you require a
memory mirror.

2)Annoying creek/rattle..haven't come across this before but judging by
what you say I would guess that the headlining has been out of that car
at some stage...normally the headlining is quite robust so shouldnt be sagging
at various corners unless it's been disturbed.
You may want to open the sunroof & check the wind deflector isnt loose.

3)Headrest sounds like the drive has gone...Ive never managed to remove
one of my electric headrests as...I dont want to damage the drive !

4)Other members will post their prefered wheel specialists, but any good
company can handle them.

5)Does the check control button extinguish the fault ? yes ? But then it
comes back again ? Recheck your connections or the float is at fault in the
reservoir. The check control is simply reading a low level in the tank.

6)Washes, recheck connections...there are 3 motors if you have headlamp
cleaning...one for the headlamps, one for the screen & another on the upper
tank for the intensive cleaning.

7)Search for threads on headlining, or search under posts by Ivan Dias !

8) The airconditioning has probably lost pressure/refridgerant.
You can check fuses, but generally when the gas is lost the lower pressure
switch activates & the A/C lamp will not illuminate nor will the compressor
engage (to protect it from damage).
Compressor engagement is not silent...if it is kicking in you will hear it.
A visit to an A/C specialist will be required for a touch of regass & inspection.

Hope this all helps,

Regards,

Alan.
 

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Discussion Starter · #5 ·
Alan, thank you so much for your detailed response.
The ony one that concerns me based on your reply is the creaking in the roof.
I definitely need to investigate this further.
Everything else I will look at over the coming weekends! :cheers:
 

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Re the headrest ........take the back off the seat in question , there are 2 screws ......one either side of the seat back , remove them .....lift the bottom of the seat back away from the seat and then slide the seat back up towards the roof to release the 2 clips .......

The chances are that the cable responsible for moving the headrest has become slack and needs adjustment , as you say that you can hear the motor .
 

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Discussion Starter · #7 ·
Thanks David, I shall try that today.
Re: the check control, when I press the button, it does nothing to the dispay, i.e. it does not extinguish the fault. I have the two arrows present throughout the entire journey, and when I press the button after having just turned the car on, the message does not go away when.
I will however, re-check all the hoses and line connections and make sure there are no blockages just to be 100%.
 

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it does not extinguish the fault. I have the two arrows present throughout the entire journey, and when I press the button after having just turned the car on, the message does not go away when.
I will however, re-check all the hoses and line connections and make sure there are no blockages just to be 100%.
As Alan said, check the float, I found that mine had simply detached itself inside the tank and needed putting back on. Alternatively you might find that the float is the wrong way up (i.e. never floats).

With regards to the washer jets, have you sense checked whether both pumps are working? I have recently had to replace both of mine.

Jon
 

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Re: the check control, when I press the button, it does nothing to the dispay, i.e. it does not extinguish the fault. I have the two arrows present throughout the entire journey, and when I press the button after having just turned the car on, the message does not go away when.
The dash button does not reset the fault list, it only hides them. If you have an OBC fault pressing the button will give two arrows, press it again and the fault will display again. To reset it you need to find the problem! If the button fails to toggle the OBC display then its probably the solder mount microswitch beneath the pushbutton, could be a dodgy solder joint due to excessive pressing!

MIKE.
 

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The dash button does not reset the fault list, it only hides them. If you have an OBC fault pressing the button will give two arrows, press it again and the fault will display again. To reset it you need to find the problem! If the button fails to toggle the OBC display then its probably the solder mount microswitch beneath the pushbutton, could be a dodgy solder joint due to excessive pressing!

MIKE.
Mike,

With your level of knowledge on these cars I just wanted to check whether you were a distant relative of Farrell's....?

Jon
 

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LOL, thanks for the compliment Jon but I don't think so. I am very hands on with my cars and although the M5 has been in my possesion only 3 years I've been working on e34's for about eight so there are'nt many things I have'nt had a go at!

MIKE.
 

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I for one would love to know if there's a way to clean &/or re-grease the gears in the mirrors as mine struggle when it's cold out and I'd rather not have to replace the motors as the ones for the M-Tech memory mirrors aren't cheap.

I love the downward dipping of the passenger mirror when the car is put into reverse. But it's rather annoying when it doesn't dip all of the way down because it's too cold to do it.
 

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Discussion Starter · #14 ·
I chuckle to myself everytime the passenger mirror tilts down whilst in reverse.
Then again, I am easily pleased!
 

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Discussion Starter · #15 ·
Just thought I'd update this thread:

Today I at last had an afternoon to myself to play with the M5 (only after a good drive out this morning of course!)

The good news is I managed to sort a few of the problems out that are listed in my original post.

First I found the washer jet problem - Only 2 out of the 3 pumps worked, the one at the lowest point in the car was shot. I replaced it with the working one from the intensive washer jet tank just so I had some wash wipe to clear the dead fly carnage on my windscreen. Just need to get a new pump for the intensive washer and it will be fine.

I did however feel the need to remove the bumper because it wasn't sitting corrctly. On doing this I found one of the fluid lines running to the headlamp wash wipe had been mislocated and crushed up behind the bumper mount - effectively the line had been crushed and split by the mount and that's why the bumper wasn't sitting correctly. It makes me wonder what type of monkey has been working on the car in the past as it's such a blatant oversight.

Next thing I did was the headrest fix - Following the advice from people above I took the seat back off, pulled the cable out of the motor, cut about half and inch off the outer cable, "plugged" it back into the motor and hey presto, right as rain. Easy fix!

Next I fixed the mileage reset and check control toggle. I took the steering wheel off then removed the instrument cluster by unscrewing the 2 screws holding it in place. Gently pulling it forward I removed the 3 quick release connectors in the back of the cluster, then spilt the dash pod in half to expose the circuirt board. Basically, both toggle switches are conductive and the rings they each engage with on the circuit board side of the cluster pod were dirty. I cleaned them and put everything back together, and now both switches work perfectly! Happy days!

The creaking noise from the roof was an ill fitted panel that the sunroof switch is located in, again an easy fix.

Finally I inspected the O2 air hose that was hanging lose from a few weeks back when I rewired a duff valve in the vac system, only to find that my indy had ut it back in place during the inspection 2 service a few weeks back which I was encouraged to see!

So remainning jobs are to replace the split washer hose for the headlamp wash, replace the intensive washer tank pump, fix the air con, new tyres and a coolant system overhaul which I can do throughout the summer.
Apart form that everything else is in good nick.............to date!

Cheers
Rob
 

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Excellent effort, what a productive afternoon Gravy!

I'm a relative M5 newbie too and was just going to add, that if you are stuck with a problem, there is quite simply nothing that Farrell can't fix.
 

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Discussion Starter · #20 · (Edited)
Just an update for those that may be interested:
<O:p</O:p
1) Bought a Nissens replacement cooling pack. My current one is goosed, the top line of packs have pulled away from the rest, how on earth it isn’t leaking is anyone’s guess! I look forward to receiving it this week and shall fit it next Saturday – in the meantime the car isn’t going anywhere as the fan is coming on too often and there is no way I want to risk overheating the engine!
2) Ordered a set of Dunlop SP9000’s all around today. They are due to be fitted next Saturday too. I had a rear wheel off today to try and clean it up (and to try and remove the throwing star – no chance as I don’t have the correct splined bit) and the tyres are in a bad way. To be honest, I don’t know a) how I haven’t fallen off the road yet and b) how they passed and MOT and Inspection 2 with no more than an advisory to say they need changing soon. I obviously don’t go anywhere near the cars limits and is a testament to how good the car is! I can’t wait for the new boots, it should feel even better and may improve the steering feel I’m complaining about.
3) Whilst under the car I found the rear ARB droplink bushes to be shot, I fear the next expenditure will be to renew all the bushes all around whether they need it or not, there’s nowt like changing the bushes to make the car feel like new again, not that mine feels bad.
4) I also discovered the brake lines to be heavily corroded. They are not leaking but now I know that’s the condition they are in, I want to renew them – One imagines this is a bit of a job to say the least!
5) Finally, the nearside rear damper noodle/protector has a small split, I assume these protect the damper from dust so I want that replaced sharpish!

<O:p</O:p
To be honest, whilst under the car I was a little disheartened to find that things looked dirty/old and generally tatty but I do have to remember this is not a garage queen and it gets used. It has also covered nearly 130,000miles and so it won’t be immaculate underneath!
Still, I can’t help having thoughts of stripping bits off the car, rebuilding/renewing or cleaning where appropriate then putting it all back together.
Trouble is I can’t do without the car as I take it out for fun runs every weekend and it will hurt to have it off the road!
Also, there is strong potential that I may move to the USA with work in the not too distant future, and then I really will be in a dilemma as to what to do with the car. Hopefully I can keep this one here and buy another when I am out there, but I guess I will cross that bridge when I come to it!

Cheers All!

Edited to add - Is this the coolant I will need when I plumb in the new cooling pack? http://www.c3bmw.co.uk/StockItem.as...roductID=1168&oRef=-1&section=2&Item=unassign
If so, how much will I need, I read somewhere the M5 holds 13ltrs of coolant!!!
 
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