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Electronic steering lock failure.. thoughts?

Winsoxuk

Member
Joined
Dec 16, 2022
Messages
50
Location
Wakefield
Car
SLK350 2011. + 850R Volvo
Has anybody just replaced the motor in the electronic steering lock?

Just found them available as a spare part and thinking it just replacing it as mine is playing up.

Mine throwed an error code this morning and wouldn't unlock eventually after hitting it with a hammer we managed to get it moving again.

Don't want to temp fate and drive it until I've rectified the issue it looks like there's a dead spot on the motor.

Cheers all

Dave
 
They are coded to the car, but definitely change it before it gets stuck locked on.

With it unlocked its half the time.
 
Yeah I realise they were coded to the car that's why I thought I'd just changing the motor. I'm going to order one and take it apart.

Luckily it's in the unlocked position.
 
Manage to pull out the electronic steering lock module it's a bit of a pig to get to luckily I'm only a small guy so I managed to wiggle myself under the dashboard to get it out.

The unit sits in a cage at the back end of the steering wheel assembly if it's in the unlocked position you can push the threads on of the bolt( shown in the picture below) inwards and this allows you to lift the module out. If it's in the locked position you can't push the not threads into the module so the whole steering column has to come out.
 

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The motor arrived today at the grand price of 20 quid.

They supply the tool to remove the four securing pieces of metal which to be fair doesn't really do the job ....persevered and managed to get them out.

On opening up the unit it looks like the carbon brushes within the motor are at the end of their usable life as there was carbon build up around the back end of the motor, I can only assume this came off the internal brushes causing a dead spot on the rotor.

One thing to be wary of is when you're reassembling the item make sure that if the unit is at the end of its travel either in the lock or unlocked position you don't damage the switches which I've circled in red it's easy to crush these if the mechanism isn't pushing on them correctly. Just put a small screwdriver in and push them out of the way.

Apart from the fiddly bits it's quite an easy fix to be fair one thing that I will stop doing from now on is I'm not going to turn the steering wheel to lock it when I take the key out this seems to put a lot of pressure on the mechanism

I have to admit you have to be an acrobat to be able to get under the dashboard there's not a lot of room to get your body in under there I'm a small guy and I've just managed to get under there it can be a bit of a tight squeeze but managed to do it.

One working electronic steering lock module.
 

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The motor arrived today at the grand price of 20 quid.

They supply the tool to remove the four securing pieces of metal which to be fair doesn't really do the job ....persevered and managed to get them out.

On opening up the unit it looks like the carbon brushes within the motor are at the end of their usable life as there was carbon build up around the back end of the motor, I can only assume this came off the internal brushes causing a dead spot on the rotor.

One thing to be wary of is when you're reassembling the item make sure that if the unit is at the end of its travel either in the lock or unlocked position you don't damage the switches which I've circled in red it's easy to crush these if the mechanism isn't pushing on them correctly. Just put a small screwdriver in and push them out of the way.

Apart from the fiddly bits it's quite an easy fix to be fair one thing that I will stop doing from now on is I'm not going to turn the steering wheel to lock it when I take the key out this seems to put a lot of pressure on the mechanism

I have to admit you have to be an acrobat to be able to get under the dashboard there's not a lot of room to get your body in under there I'm a small guy and I've just managed to get under there it can be a bit of a tight squeeze but managed to do it.

One working electronic steering lock module.
Well done! 👍👍😁
I remember trying to change a blend door motor on a Sabb 9-5,

I am 6 foot 3 and ex rugby player build (second row forward so brute force and ignorance) and found the process of laying upside down in the footwell "challenging" 😁
 

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