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Old 02-25-2007   #1 (permalink)
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Angry HELP!!! SmartTop installation stalled.

HELP!!!

I bought the SmartTop unit for a UK righthand drive SLK. Unfortunately it has been a bit of a nightmare fitting it.

I seem to have got stuck at parts 8 and 10 of the instruction manual.

Step 8 - It was very diffcult to remove the plug from the socket. I In fact when I removed it, the wires came out from the plug! Is this normal? (first pic)

Step 10 - I tried to fit the plug from the SmartTop unit (second pic) into the original Mercedes socket (3rd pic -3rd socket from the left in this case, there was a plug in the 2nd from left socket but I had to remove it to get to the third plug). But there was no way the plug would fit to the socket.

Please help as my car has spotted a malfunction and the electric seats has ceased having its memory function.

Kind regards

Terence
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Old 02-25-2007   #2 (permalink)
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terrylim, Where are you located? Please update your location so we can have an idea as specs on cars are somewhat different for each country/continent.

Do not pull hard on the wires at the CANBUS. Try to reinsert the plugs to the connector where it came out from, use adjacent wires as a guide as one of them has the brown and red and the other looks like plain brown.

Go back to step 7. You must remove the CANBUS cover first and the plugs will come out easy ONLY AFTER you have removed the CANBUS COVER. Here's a link to Shinigami's install: http://www.benzworld.org/forums/r171...y-once-11.html, post no 109. The install is very similar to the original Piecha module.

To facilitate removal of the CANBUS cover, insert two flat match sticks to each side of the cover (your pix show you have not removed the CANBUS cover) so the tabs on the side are away from the body. Secure the match sticks to the body (not to the cover) with narrow masking tape at the lower 1/2. Slowly pry open the CANBUS cover upwards or towards you with a small flat screwdriver. Try to pry one side out first and it should slowly snap open and then other side will come off easy. Take your time in removing the CANBUS cover.

CANBUS cover is the upper 1/3 with the two L-shaped tabs on the top. In your pix turn the CANBUS around and you will see that the upper 1/3 is a cover.

Let us know if you're successful.
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Old 02-25-2007   #3 (permalink)
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Addendum: After removing the CANBUS cover, then you can disconnect the 3rd plug and insert the one from the SmartTop easily. DO NOT reattach the CANBUS cover. Finish the installation of the SmartTop. Do not return the carpet etc after the install. Remove all tools from the work area and gently close the door. Now test the SmartTop function. If it works, then and only then, you reattach the CANBUS cover and reinsert the whole connector into its slot and then reassemble everything else.
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Old 02-25-2007   #4 (permalink)
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Eddy's the expert when it comes to the roof modules so if you follow his advice then i am sure everything will be fine.

Only thing is if the actual CAN connectors are broken they might not lock into the cover correctly if thats the case you will have to take the car back to Mercedes to have new connectors installed the reason you don't have memory seats is because you have the plug disconnected.
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Old 02-25-2007   #5 (permalink)
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Dear Etyu

I am in the UK, near London.

Oh crap, I see where I have gone wrong now. It looks like I have broken two plugs.

I thought I had done step 7, which I though was for the whole long unit (you may be referring to this as CANBUS). But Step 7 is actually for the little plug itself!

This means I have two halves of two plugs in sockets 2 and 3 of the CANBUS thing. The original wires connected to them are now broken off along with the top bits of plastic.

Eh ... what should I do now?
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Old 02-25-2007   #6 (permalink)
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Dear DansSLK

Yes I have two broken CAN connectors. So you're right, I do need to pay a visit to Mercedes.

But the memory on the seats went before I even opened the black box under the seat, when all wires there were still intact.

The only things I did before the memory went was 1) uninstall kickplates 2) messed the carpet a bit 3) crimp red wire behind the light switch.

I wonder if I have identified the correct 12V red wire. I had to remove the light switch and the only wire harness with one red wire on it was the one actually connected to the light switch (see picture).

Many, many thanks to Eddy and DansSLK for your responses.

Terence
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Old 02-25-2007   #7 (permalink)
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The long rectangular black plastic in your photos is the CANBUS connector assembly.

My suggestion is: Try to remove the CANBUS cover. Once this is removed, see if the wires can be reattached into the 2 plugs that you had removed.

You may be able to snap the two halves of the plug together trapping the appropriate brown wires in between (I'm hoping you didn't permanently break off any tabs that hold the 2 halves of the plug together) and reinsert the plug to its correct position in the CANBUS. Use the (male) plug supplied by smartTop as a guide. If the plugs are beyond repair, then it may mean a trip to Mercedes, to get new plugs reattached.

I know Mercedes in the UK are quite strict about warranties etc. Perhaps you know a technician that may be more friendly and forgiving.
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Old 02-25-2007   #8 (permalink)
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Well from tapping the wire so long as your lights work OK and that wire tap looks alright to me then that wont have caused any problems just check all the different functions of the switch and check they work but i don't think you have done any harm there.

And obviously the other bits of work are cosmetic and don't have any effect on the electronics.

Like Eddy says get that cover off and remove the 2 broken plugs but i think what you have done is broken the metal tabs on the actual connectors themselves not the plastic casing and the metal connector has backed out of the plastic plug, you will need to visit MB to fix this the damaged connectors will be removed and new ones crimped on and inserted into new plastic plugs (MB wont re-use old parts) its not something an indy can do not because of difficulty but getting the parts the dealer will figure out whats going on when you order them.

I cant really think of a good excuse you could use when explaining it but since you have not actually added any components yet (hide that wire tap) then i think your warranty should be OK but you will be liable for the harness repair your prob looking at about an hour at MB rates so about £90 and 1/2 quid for parts.

Easy mistake to make but as always with MB very costly
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Old 02-25-2007   #9 (permalink)
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Here's a link to varioroof module, RHD install process: http://www.benzworld.org/forums/r171...ht=RHD+install Post no. 24 on this thread is a better way to tap the wire as you can push out the light switch assembly.

Do read every post in this thread and the prior link: http://www.benzworld.org/forums/r171...y-once-11.html (pages 11, 28 and 30)as some offer tips that is not mentioned by the first person that did the installation.

The red wire you tap into, should be solid red wire with no other color on the red insulation.
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Old 02-25-2007   #10 (permalink)
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One thought has just popped into my head how did you remove the light switch if you accessed it from underneath you could have dislodged one of the connectors on the steering column since the seats and the steering wheel are tied together that could be the cause i suggest you check all the connectors behind there and check they are all securely connected.

Just give them all a push to check they are tight don't remove any re-insert them because there are airbag wires under there that when disconnected will shut down the SRS until MB re-enable it again you would need to explain just what you where doing under there.

Are you any good with a wire crimper? if you are then order the parts from MB and do the job yourself if not don't risk it CAN wont like a dodgy connection one bit.
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Old 02-26-2007   #11 (permalink)
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Thanks DansSLK and etyu.

Yes, unfortunately, the wires and plugs are definitely broken

I will try to find a specialist technician to see if he can help. Otherwise it's a trip to MB with some sorry excuse (whimper).

Will check out what's the problem with the memory on the seats as well. I don't think I dislodged anything but may have weakened connections maybe. Better sort this out or get MB/technician to sort it out as it looks like I'm due a visit.

The wire I crimped is definitely a solid red one and the only one I could find in a harness with other wires. But the instructions on Mods4Cars showed I could get to this without undoing the blue plastic tab which is connected to the light switch and is screwed onto the side of the dashboard. This would have not been possible on my car. So I am a little confused. Anyway, I have loads of links to read and maybe the answer lies within. I'm away on business so cannot spend the time right now.

Once again, thank you very much for all your wisdom!
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Old 02-26-2007   #12 (permalink)
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The crimp supplied by mods4cars is one where the blue plastic part is crimped unto the red wire and the connector from the module just connects to it (slide action, spade type connector) at right angle.
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Old 02-27-2007   #13 (permalink)
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Quote:
Originally Posted by terrylim View Post
Thanks DansSLK and etyu.

Yes, unfortunately, the wires and plugs are definitely broken

I will try to find a specialist technician to see if he can help. Otherwise it's a trip to MB with some sorry excuse (whimper).

Will check out what's the problem with the memory on the seats as well. I don't think I dislodged anything but may have weakened connections maybe. Better sort this out or get MB/technician to sort it out as it looks like I'm due a visit.

The wire I crimped is definitely a solid red one and the only one I could find in a harness with other wires. But the instructions on Mods4Cars showed I could get to this without undoing the blue plastic tab which is connected to the light switch and is screwed onto the side of the dashboard. This would have not been possible on my car. So I am a little confused. Anyway, I have loads of links to read and maybe the answer lies within. I'm away on business so cannot spend the time right now.

Once again, thank you very much for all your wisdom!


To my eyes the red wire looks orange to me

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Old 02-27-2007   #14 (permalink)
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Hmm, I will have to go back to the car to see if it is red or orange. I'm away on business at the mo. Pretty sure it looked very red, but you'll never know, very cramped working conditions.

Does anybody know if the 'red' wire is part of the harness that is conected to the light switch itself?
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Old 02-27-2007   #15 (permalink)
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Red's the power for the light switch so if you have got it then you should be OK for juice

Just to check why not use a multimeter one end for the splice the other to exposed chassis (only available on the ground points) don't keep it on for long just enough to check for 12V
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Old 02-27-2007   #16 (permalink)
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I know on my install on my LHD drive US car, there were a number of red wires in the bundle, but all except one had a thin stripe of another color, and that stripe seemed to always be on the side of the wire facing the inside of the bundle!

I have NEVER understood why wiremakers can't put the stripes on in a slow spiral.
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Old 02-27-2007   #17 (permalink)
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I would highly recommend NOT to crimp the red wire in LHD vehicles when it's easy to draw a constant 12V power from the fuse box. (personal preference) This also lowers your risk for short circuits and blowing a fuse during the crimping process.

Terrylim, keep us posted when you get the things fixed. I'd be curious to know.
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Old 02-27-2007   #18 (permalink)
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As said above there are other red's but one should have no stripes and that carries the 12V if you have that one fine if not don't connect up to the tap.

As etyu says on the lefties go for a fuse connection from the box however this is next to impossible on the right handers because the box is on the passenger side.
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