Where is the most likely place for a leak in central locking

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berntd
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Where is the most likely place for a leak in central locking

Post by berntd » Fri 14 Nov, 2014 8:57 am

Hello

My 230SLK central locking pump runs for a very long time when I LOCK the car.
Unlock is normal.

Where is the most likely place I should look for leaks?

Regards
Bernt

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Tony From West Oz
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Re: Where is the most likely place for a leak in central loc

Post by Tony From West Oz » Fri 14 Nov, 2014 9:52 am

The CL Actuators are the location of most CL vacuum locking leaks.
Rarely there are joiner of pipe issues.
Joiners and Tees are under floor mats, so fault finding is relatively easy.
I hope this helps,
Tony
Life is a journey, with problems to solve, lessons to learn, but most of all, experiences to enjoy.

'83 W123 300D 325000km (Wife's car Josephine - sold).
'84 W123 300D replaced good OM617 912 with OM617 952 and enjoyed having good acceleration for the first time since first driving a 300D in 2002 - became engine and trans donor for 300CD Turbodiesel conversion. Now parted out.
'86 W124 300D sold (Wife's old car - sold )
'85 W123 300CD, 275 000km (Fatmobile) rebuilt turbodiesel from previous Fatmobile transplanted into 280CE (SOLD)
'99 W202 C250 Turbodiesel (my darling Wife's car - Sold)
'98 W202 C250 Turbodiesel (my car - Sold)
'06 Ssanyong Musso Crew Cab 2WD Ute (OM662 diesel and Auto Transmission)

berntd
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Re: Where is the most likely place for a leak in central loc

Post by berntd » Fri 14 Nov, 2014 2:10 pm

Thanks for that.

Just got this car last night and very excited stil :dance:

Where is the CL pump located in the SLK230?

Actuators:
Left door right door and bootlid fuel flap. Or are there hidden others?

Also, where is the battery located in this vehicle?

Regards
Bernt

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Tony From West Oz
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Re: Where is the most likely place for a leak in central loc

Post by Tony From West Oz » Fri 14 Nov, 2014 3:33 pm

Most likely next to the spare wheel in the boot.

To troubleshoot the CL System, get a couple of golf tees and disconnect the lock hoses (Yellow / red stripe?) at each Tee or joiner to isolate the actuators in turn. When you find the faulty one, get a replacement or repair it (search for actuator repair on this forum).

Happy hunting.
Tony
Life is a journey, with problems to solve, lessons to learn, but most of all, experiences to enjoy.

'83 W123 300D 325000km (Wife's car Josephine - sold).
'84 W123 300D replaced good OM617 912 with OM617 952 and enjoyed having good acceleration for the first time since first driving a 300D in 2002 - became engine and trans donor for 300CD Turbodiesel conversion. Now parted out.
'86 W124 300D sold (Wife's old car - sold )
'85 W123 300CD, 275 000km (Fatmobile) rebuilt turbodiesel from previous Fatmobile transplanted into 280CE (SOLD)
'99 W202 C250 Turbodiesel (my darling Wife's car - Sold)
'98 W202 C250 Turbodiesel (my car - Sold)
'06 Ssanyong Musso Crew Cab 2WD Ute (OM662 diesel and Auto Transmission)

berntd
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Location: Sydney

Re: Where is the most likely place for a leak in central loc

Post by berntd » Fri 14 Nov, 2014 3:54 pm

It must be there somewhere but in the 'usual' place in the boot like on the sedan, I found the roof pump instead of the CL pump.
Will look into it tomorrow. Tonight, I 'll just sit in it for a bit :love10:

Djenka018
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Re: Where is the most likely place for a leak in central loc

Post by Djenka018 » Fri 14 Nov, 2014 9:11 pm

The actuator that is slowest to respond could be leaking.

I think that all the cars post mid 90's have 2 way CL (vac vs. pressure).

There could be an issue with a sensor switch too.
'80 450SLC 3-continental

berntd
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Re: Where is the most likely place for a leak in central loc

Post by berntd » Sat 15 Nov, 2014 10:11 am

Ok. I found it.
Driver side door actuator.

It can't disassemble but I managed to repair it anyway.

It has steel balls pressed into unused passages and the plastic around one had split.

Repaired with tiny blob of silicone. 15 year warranty. :whistle:
I still have to fiddle it all back into the door though...

Regards Bernt

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