Author Topic: What's The Part Number For The Hood Release Cable Firewall Grommet?  (Read 759 times)

Squiggle Dog

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What's the part number for the hood release cable firewall grommet? I cannot find it in EPC, though I can see it physically on the cable. W116 firewall grommets are difficult to find and a lot of them seem to be no longer available.
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1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Heated Seats, 347,000+

Squiggle Dog

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Wow, even when I look at other models like the W123, it shows the grommet as being attached to the cable, not a separate part. There is no part number on the old grommet. When I see pictures of the hood release cable, it has a grommet on it. I wonder if you can't buy the grommet separately and you're forced to buy the whole cable just to get the grommet. Hmmm...
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1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Heated Seats, 347,000+

Peter

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Yes both the genuine and aftermarket cables have the grommet integrated into the cable, it would make good sense to have this grommet separate  ???

daantjie

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As a side note most of these firewall grommets are NLA by now, so cherish the ones you have if at all possible.
Daniel
1977 450 SEL 6.9 - Astralsilber

Squiggle Dog

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Most of my firewall grommets are rotten. I may have some extras in my box of rubber parts. I'll have to check. I guess if I have to pay $25 for a new Gemo brand hood release cable just to get the grommet, then that's fine, but it would be nice to just buy the grommet by itself and save $23 or whatever. I'd like to get new firewall grommets for the air conditioning and heater hoses since replacing them is so inconvenient and requires draining/evacuating them. But, some of these seem no longer available, so that's disappointing, though I am looking into compatible alternative part numbers.
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1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Heated Seats, 347,000+

Squiggle Dog

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Part number 0019971481 might work. I measured the hole in the firewall and it looked like it was roughly 21mm wide. According to MB Classics, this part fits a 22mm hole. Maybe the reason the hood release cable grommet may not be sold separately could be because of the difficulty of installing it without damaging it, but I think the cylindrical cable end should be able to be carefully angled through. The challenge may be the additional insulation around the cable after it enters the cabin, but a new grommet should be flexible enough to carefully slide it over and past this.
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1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Heated Seats, 347,000+

Alec300SD

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I have a used  spare, still pliable, and ready  to install on 'Stormcloud".
IIRC it came out of a W123, but it may very well have been a W116.
It has the MB star and  1169971981 as the part number.

The good folks at the classic center may be able to help you acquire a new one, or you may find a decent spare at the junkyard.
The online dealer parts sites only go back to 1984, and I couldn't find any matches to the part number with a google search.
If I find another decent one, I'll snag it for you.

79 W116 300SD 'Stormcloud' new as of 10/22/2017
78 W116 300SD 'Desert Rose' new as of 01/26/2014
83 W126 300SD 'Rena 2.0' with engine from 82 W126 300SD Rena' (SOLD and crushed 11-20-2017)

floyd111

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Shoot me for being stupid, but with so many of those grommets missing by now, isn't there some way of taking a piece of PU or some other flexible rubbery substance, and simply mill and drill it to shape, the way a cabinet maker does wooden vases and table-feet? It may not be the best smooth finish, but it should hold, be pretty water proof, and god forbid, it may even be the right color.

Squiggle Dog

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Alec300SD, thanks for the part number. So, it seems that the W116 and W123 (and maybe others) used the same part number grommet. I looked it up and it seems that it might be no longer available. I'll have to see if I have one in my boxes of rubber parts, and will have to check to see if I saved a cable or two.

It's disappointing that I now live so far away from the wrecking yards. What's worse is the really good wrecking yards that used to always have old Mercedes got torn down. And even then, the cars are always so sun-baked here. The interiors always seem to be fried and the rubber parts dried up.

If I have to purchase a new cable to get the grommet, then I suppose that's what I'll do.

floyd111, I suppose that's possible. Not feasible for me, though.

I noticed the one on my car has an extra hole, which I don't like as it can let in water. I don't know what the purpose of the second hole is. I wonder if the new grommets that come with the cables have a second hole punched in them--I know they will have a second bump, but hopefully there is no hole. The ones for the W108, W109, W110, W111, W112, and R113 (1109970781) are still available, but they fit a larger (25mm) firewall hole size and won't fit. They also have a slit cut in them for installation and have a second hole which is larger than the hole for the hood release cable because it's intended for the speedometer, oil pressure line, or something.
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1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Heated Seats, 347,000+

ptashek

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Shoot me for being stupid, but with so many of those grommets missing by now, isn't there some way of taking a piece of PU or some other flexible rubbery substance, and simply mill and drill it to shape, the way a cabinet maker does wooden vases and table-feet? It may not be the best smooth finish, but it should hold, be pretty water proof, and god forbid, it may even be the right color.

It can be 3D printed. On my todo list of parts to reproduce. One day...
1993 "Pearl Blue" W124 280TE
1979 "Icon Gold" W116 450SE (history, resto)
1977 "Milan Brown" W116 350SE (parted out)

Alec300SD

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Squiggle Dog, on my way to work this afternoon I stopped by the Oakland PNP, and pulled the parking release cable grommets from a W123 300D,  and a W126 300SD.

The W123 grommet (MB Part Number 1239970687) only has one hole and is too small to fit a W116.

The W126 grommet (MB Part Number 1269970881) has two  spaces where cables can run, one is still unopened (just like the spare W116 300SD grommet I have at home), and it appears it will be a suitable replacement for the W116 grommet.

It has a slight 1.5 to 2mm separation at the mold flashing where the hold release cable feeds through, no cracks anywhere else, and still pliable as well.

Send me a PM and I'll sent the part your way, after I clean it off  with some Aerospace 303.
79 W116 300SD 'Stormcloud' new as of 10/22/2017
78 W116 300SD 'Desert Rose' new as of 01/26/2014
83 W126 300SD 'Rena 2.0' with engine from 82 W126 300SD Rena' (SOLD and crushed 11-20-2017)

Squiggle Dog

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Wow, thanks Alec300SD! That's good to know about the W123 part not fitting, and that the W126 part fits. I entered that 126 part number and it seems they are no longer available, either, as is the 123 part number.

I was browsing through the parts in my shed and found a hood release cable with the grommet still attached. The part number on it is 1169971981, just like the one you plan to use on your car. It's also in good condition.


I found a second spare grommet, but like the one installed on my car, it had no part number and was in poor condition. I wonder if the ones with no part number are aftermarket (as in the cable was replaced). I noticed that my cable isn't routed correctly and the grommet was never seated in the hole, so perhaps the cable was replaced at one point.

Since I found a good grommet, you don't need to send the one you pulled if you want it as a spare. I really appreciate you taking the time to look for me and remove it. But, if you still want to send it here, I'll take it.
Stop paying for animal cruelty and slaughter. Go vegan! https://challenge22.com/

1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Heated Seats, 347,000+

Alec300SD

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Glad you found a spare MB hood release cable with the right grommet.
You are better off using the better designed W116 grommet (it has no seams from a split mold).

I'll retain the W126 grommet as a backup spare, it is marginally okay as it is already starting to split.

I installed the W116 grommet in 'Stormcloud' this afternoon.
Just like in your car, the aftermarket grommet was not seated in the hole.
Instead, gobs of butyl rubber were used by the PO to keep water out of the cabin.

Of course there was rust on the firewall that will need to be properly addressed at a later date.
For now, I just scraped the loose rust flakes off the firewall and treated the area with DeoxIT-D, DeoxIT  L260Np Grease, and then Lanocote.


79 W116 300SD 'Stormcloud' new as of 10/22/2017
78 W116 300SD 'Desert Rose' new as of 01/26/2014
83 W126 300SD 'Rena 2.0' with engine from 82 W126 300SD Rena' (SOLD and crushed 11-20-2017)