The impossible task of removing wiper arms

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Z3 Mark
Joined: Wed 20 Nov, 2013 22:34
Posts: 101

  Z3 roadster 1.9

The impossible task of removing wiper arms

Post by Z3 Mark » Fri 01 Aug, 2014 10:53

So what's the trick to removing the wiper arms, as it's impossible as far as I'm concerned :head:

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Even bought a little puller thing that people have recommended me to no avail...
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if someone can give me any help with this I'd be super greatful as I need to get to the heater resistor, and want to do this job myself rather than pay a garage as it's only the wiper removal stopping me now :head: :bawl:
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pingu
Joined: Fri 30 Apr, 2004 17:01
Posts: 3337

  M roadster S50

Re: The impossible task of removing wiper arms

Post by pingu » Fri 01 Aug, 2014 11:49

You are doing the right things. Try some PlusGas on the splines (don't waste your time with WD40). Also gentle taps with a 1lb hammer (it's a Goldilocks - not too light and not too heavy), but be careful of the threads and the paint (I would cover everything with a cloth first to prevent damage to the paint). Be aware that the spindle will not be rigidly supported and may bend if hit too hard - use lots of gentle taps using the weight of the hammer head, not the force of your arm, like a gentle machine gun.

I would avoid using heat as there is a lot of plastic around and it may damage the paint. But, it is always a last resort.
Pingu

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Southernboy
Joined: Thu 07 Oct, 2010 13:39
Posts: 6312

  Z3 roadster 3.0i
Location: Johannesburg

Re: The impossible task of removing wiper arms

Post by Southernboy » Fri 01 Aug, 2014 12:16

Follow the directions from Pingu.... try applying the puller, and then gently tapping the "screw" of the puller at the top and then turn the puller another little tighter and tap,tap, tap it again ....
"Normal is overrated"
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pingu
Joined: Fri 30 Apr, 2004 17:01
Posts: 3337

  M roadster S50

Re: The impossible task of removing wiper arms

Post by pingu » Fri 01 Aug, 2014 14:40

Something else. Take the stress off the spindle by lifting the wiper arm. On the pictures, it looks like the blade is still on the windscreen.

Don't forget to note the position of the arm before you remove it, so you get it back in the same place.
Pingu

Mike Fishwick
Joined: Fri 19 Jun, 2009 11:27
Posts: 1991

  Z3 roadster 2.8
Location: Daglan, France

Re: The impossible task of removing wiper arms

Post by Mike Fishwick » Fri 01 Aug, 2014 14:47

Heat is the answer - but like anything else, use it in moderation. A hair dryer will do no harm, the plastics being moulded at higher temperatures.
A Z3 is not just for Christmas - it's for life!

t-tony
Joined: Sun 21 Feb, 2010 23:17
Posts: 352

  Z3 roadster 2.0
Location: torksey lock

Re: The impossible task of removing wiper arms

Post by t-tony » Fri 01 Aug, 2014 19:40

First thing to do Mark is to replace the spindle nut and screw it down level with end of the threads on the spindle. Otherwise you may damage the "start" of the thread. Then apply your puller tool and put some fair pressure on it.

Next I would go for Gooka's tapping method, and if the doesn't work either, it's gentle heat as Mike says.

Good luck mate. :)

Cheers, Tony.
"Knowledge and experience are not always the same"

Vic-Z3
Joined: Fri 11 Jun, 2010 20:28
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  Z3 roadster 2.2i
Location: Redditch
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Re: The impossible task of removing wiper arms

Post by Vic-Z3 » Fri 01 Aug, 2014 22:17

Undo nut so it is left on about three turns. Put puller on as pictured. Apply pressure to the screw and tap the end with an 8oz small hammer.
They will pop off.
----------------- BMW Z3 Das Beste Auto -----------------

Mein altes Auto riecht nach Nudeln, hat dieses Auto eine Wurst Geruch.

Fender2004
Joined: Fri 14 Aug, 2009 11:24
Posts: 877

  Z3 roadster 2.8
Location: Houghton-Le-Spring

Re: The impossible task of removing wiper arms

Post by Fender2004 » Sat 02 Aug, 2014 11:18

I would replace the nut too about a few threads so that when the wiper arm does come off it will stop any injury from flying parts.
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Z3 Mark
Joined: Wed 20 Nov, 2013 22:34
Posts: 101

  Z3 roadster 1.9

Re: The impossible task of removing wiper arms

Post by Z3 Mark » Sat 02 Aug, 2014 18:06

:D Thanks everyone! Success!!! I finally got the bloody things off and have fitted a new resistor...FINALLY :D

Unfortunately the left hand side white strap that holds the black casing on over the heater will not go back in place (the bottom of the clip is splayed inwards meaning that with the pressure on the case it wont hold in place)

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Realistically how much of a problem is this? I have no idea on where to get a replacement if it's needed and really don't fancy digging down to that level on the car again, the right side is clipped on snugly but I feel like it's a bodge really without both sides in place.

Still the heater works properly now which is a huge plus :)
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pgunter66
Joined: Sat 05 Jul, 2014 21:53
Posts: 28

  Z3 roadster 2.2i
Location: Colden Common, Winchester, Hampshire, UK

Re: The impossible task of removing wiper arms

Post by pgunter66 » Sat 02 Aug, 2014 20:33

Hello

Bit late as you have done the job, but this looks handy :-)

http://www.machinemart.co.uk/shop/produ ... rm-remover

Z3 Mark
Joined: Wed 20 Nov, 2013 22:34
Posts: 101

  Z3 roadster 1.9

Re: The impossible task of removing wiper arms

Post by Z3 Mark » Sat 02 Aug, 2014 21:03

pgunter66 wrote:Hello

Bit late as you have done the job, but this looks handy :-)

http://www.machinemart.co.uk/shop/produ ... rm-remover
Saw that but found the one I bought in the end much cheaper online.
Now I understand that it just needed a bloody good pull (think the penetrating oil helped too)
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Rafolian
Joined: Wed 27 Feb, 2013 08:41
Posts: 547

  Z3 roadster 2.8

Re: The impossible task of removing wiper arms

Post by Rafolian » Sun 03 Aug, 2014 10:42

A mini ball joint splitter!!

lpalencia
Joined: Sun 26 Jun, 2016 04:28
Posts: 1

  Z3 roadster 1.9

Re: The impossible task of removing wiper arms

Post by lpalencia » Sun 31 Jul, 2016 02:30

Z3 Mark,

How did you get if off? which method did you use?

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Gazza
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  M roadster S54
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Re: The impossible task of removing wiper arms

Post by Gazza » Sun 31 Jul, 2016 12:44

pingu wrote:Something else. Take the stress off the spindle by lifting the wiper arm. On the pictures, it looks like the blade is still on the windscreen.

Don't forget to note the position of the arm before you remove it, so you get it back in the same place.

Exactly what I did, worked first time.
Gazza

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DanHolman
Joined: Sun 10 Jul, 2016 11:43
Posts: 42

  Z3 roadster 1.9

Re: The impossible task of removing wiper arms

Post by DanHolman » Fri 09 Sep, 2016 21:57

Try to find the black puller on ebay its a bit more heavy duty. Put a pre load on the puller then pull the wiper arm up slightly as it has a spring in it which puts a load on the thread which you may need to release.
I successfully replaced my wiper mech but-
The problem Is the central nut- there is not enough clearance to properly align a puller.

I found the answer using a medium sized flat head screwdriver - place it carefully under the wiper arm behind the nut but don't use it as a lever, instead twist it; by twisting the handle which is a larger diameter you get a large amount of torque on the smaller rotating flat head part of the driver at the other end you are using geared up jacking force on the rotating flat head. Hey presto! it pops off. It worked for me.

First spray with WD40 and leave for a short time... One cup of Tea. 8-)

put something under the driver so it doesn't damage the plastic.

complete removal of the mech was awkward but it can be done.
the driver I used was from Wilkinsons with the orange handle.
Be sure to re torque to recommended specs if successful
good luck

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