Steering coupler replacement 380sl without removing steering gear - Page 18 - Mercedes-Benz Forum
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post #171 of 179 (permalink) Old 02-22-2019, 11:50 AM
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Date registered: Feb 2019
Vehicle: '85 380SL, '99 SL500, '18 C300, '78 911SC, '91 Alfa Spider
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Originally Posted by okyoureabeast View Post
Come to North Hollywood and I can give you two hex bolts that will work just fine.

My local hardware store had both hex and torx bolts in stock. Ultimately put the torx in.
Thank you, I may take you up on that if Mercedes donít get me the right ones today. Also, should I be using blue loctite on them?
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post #172 of 179 (permalink) Old 02-22-2019, 12:07 PM
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Date registered: May 2004
Vehicle: 1983 380SL, ivory/dk brown, 46k miles, dual roller timing chain. 1986 560SL, red/white, 190K mile.
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Originally Posted by Lawrencefitzsimon View Post
Thank you, I may take you up on that if Mercedes donít get me the right ones today. Also, should I be using blue loctite on them?

I didn't use any thread locker on my Steering Coupler or my Steering Wheel.
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post #173 of 179 (permalink) Old 02-22-2019, 08:36 PM
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I didn't use any thread locker on my Steering Coupler or my Steering Wheel.
I got the new bolts from Mercedes Benz (the revised Torx at $5 a pop) and they had blue thread locker on them, so I didn't really have a choice.

Can't believe it, but after a LOT of terrible language, sweat, and tears the job is now done. I've replaced my steering coupler (got the MBZ part in place of the URO I had ordered), my broken odometer gears whilst the cluster was out, and changed my spark plugs for good measure. I've also dissected my faulty HVAC PBU and have managed to make a real meal of that.

In the end, big thank you to everyone for all of your help!
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post #174 of 179 (permalink) Old 02-22-2019, 10:04 PM
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Congratulations on a job that you should only do once. Thanks for sharing it.
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post #175 of 179 (permalink) Old 02-23-2019, 04:35 AM
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Date registered: May 2004
Vehicle: 1983 380SL, ivory/dk brown, 46k miles, dual roller timing chain. 1986 560SL, red/white, 190K mile.
Location: Advance, NC
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Quote:
Originally Posted by Lawrencefitzsimon View Post
I got the new bolts from Mercedes Benz (the revised Torx at $5 a pop) and they had blue thread locker on them, so I didn't really have a choice.

Can't believe it, but after a LOT of terrible language, sweat, and tears the job is now done. I've replaced my steering coupler (got the MBZ part in place of the URO I had ordered), my broken odometer gears whilst the cluster was out, and changed my spark plugs for good measure. I've also dissected my faulty HVAC PBU and have managed to make a real meal of that.

In the end, big thank you to everyone for all of your help!
I too remember having a couple of sleepless nights thinking I might have to trash my 380SL, but like you I persevered and got the job done. Now that I have done it once, the nest time won't be nearly as stressful.

BTW, did you do a side by side comparison of the Mercedes part versus the URO part?
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post #176 of 179 (permalink) Old 02-23-2019, 09:18 AM
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I too remember having a couple of sleepless nights thinking I might have to trash my 380SL, but like you I persevered and got the job done. Now that I have done it once, the nest time won't be nearly as stressful.

BTW, did you do a side by side comparison of the Mercedes part versus the URO part?
I ended up doing a very cursory side by side, when (like a complete idiot) I installed the wrong coupler at first. I realised shortly into installation because thereís a stark difference in colour. It seems as though the Mercedes part is more substantial and the materials feel like better quality, but I donít know if thatís just a self assuring illusion based on the fact that itís 6x the price. The URO coupler seems lighter and almost feels tinny in comparison.

All in all, Iím sure the URO part would have been absolutely fine, at the end of the day how much can go wrong with something so simple? I just weighed in how much I saved doing it myself (though I should factor lost hair and years off my life) and sprung for the Mercedes part because I never want to do this again.

I did notice whilst I was I there that the elusive ATF fluid leak Iíve been scratching my head over for the past ten years is coming quite substantially from my steering box.

Very happy with the upgrade in the steering feel, my car has never felt this good. Now I just need to figure out what the hell I broke in the ABS system when I changed the brake pads...
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post #177 of 179 (permalink) Old 02-23-2019, 12:18 PM
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Quote:
Originally Posted by cwmoser View Post
I too remember having a couple of sleepless nights thinking I might have to trash my 380SL, but like you I persevered and got the job done. Now that I have done it once, the nest time won't be nearly as stressful.

BTW, did you do a side by side comparison of the Mercedes part versus the URO part?
I ended up doing a very cursory side by side, when (like a complete idiot) I installed the wrong coupler at first. I realised shortly into installation because there’s a stark difference in colour. It seems as though the Mercedes part is more substantial and the materials feel like better quality, but I don’t know if that’s just a self assuring illusion based on the fact that it’s 6x the price. The URO coupler seems lighter and almost feels tinny in comparison.

All in all, I’m sure the URO part would have been absolutely fine, at the end of the day how much can go wrong with something so simple? I just weighed in how much I saved doing it myself (though I should factor lost hair and years off my life) and sprung for the Mercedes part because I never want to do this again.

I did notice whilst I was I there that the elusive ATF fluid leak I’ve been scratching my head over for the past ten years is coming quite substantially from my steering box.

Very happy with the upgrade in the steering feel, my car has never felt this good. Now I just need to figure out what the hell I broke in the ABS system when I changed the brake pads...
If your box is leaking, you're going to have to remove the coupler to drop the box.

That's the job I did over Christmas. Was a helluva nightmare to do. But I did it!
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post #178 of 179 (permalink) Old 02-23-2019, 04:15 PM
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Originally Posted by okyoureabeast View Post
If your box is leaking, you're going to have to remove the coupler to drop the box.

That's the job I did over Christmas. Was a helluva nightmare to do. But I did it!
I've got a little leak that might be the Steering Box.
After you dropped the box, what did you do to fix the leak?
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post #179 of 179 (permalink) Old 02-23-2019, 07:38 PM
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Quote:
Originally Posted by okyoureabeast View Post
If your box is leaking, you're going to have to remove the coupler to drop the box.

That's the job I did over Christmas. Was a helluva nightmare to do. But I did it!
I've got a little leak that might be the Steering Box.
After you dropped the box, what did you do to fix the leak?
I replaced the whole box with a new rebuilt one 😛

There's a DIY guide detailing how to rebuild these boxes. Lots of special tools and gotchas that do not look fun.

Carsteering.com or something like that was where I bought the box. Cost about 300$ after a core.
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