Recent Posts

71

Drive train, fuel, suspension, steering & brakes / Fuel issues, please help a newbie!

« Last post by RobParkerMB on August 31, 2025, 15:56:04 »

Skipping most of the story, I have no fuel coming out of a couple of IP outlets. Can you see in this picture a stuck plunger, or do I have to remove more parts?

Out of the two with their fittings off, the left one was producing fuel, the one on the right was not. Yet both looks the same. And nothing moves when turning the engine by hand.

I'm a decent home mechanic but haven't worked on one of these before so I don't fully understand which bits are meant to move and not.

Any help greatly appreciated.

72

Electrical and Instruments / Re: Clock repair alternative to replacing solder fuse

« Last post by JedinDetroit on August 31, 2025, 14:19:36 »

Hi GM,
Would you mind sending me a copy as well please?

amjady@aol.com

thanks!

73

Commercial Advertising / SOME PHOTOS Available RARE wiring harness for W111-280SE low grill 1970

« Last post by lpeterssen on August 31, 2025, 13:19:57 »

Attached some photos for your delight

74

Commercial Advertising / Available RARE wiring harness for W111-280SE low grill 1970

« Last post by lpeterssen on August 31, 2025, 11:17:47 »

Dear friends


Just finished and is available for sale on my site www.wiredoktor.com an ultra RARE MAIN WIRING HARNESS for W111-280SE LOW GRILL 1970. After investigating on internet there are about 700 cars only of this version.

This one has been meticulously restored to its original glory with some minor improvements as this was the last edition of the W111 and there was only few things to make better.

The harness came with following characteristics:

• LHD, AUTOMATIC transmission (late version with only kickdown switch and selenoid, no iddle switch or constant speed selenoid as on early w111)
• ELECTRIC TACHO, yes this one has the 6 pin plug with the signals for an electric tachometer
• INNER CABIN main fuse box, on driver footwell, as came on W108 or in the W111-3.5
• Late steering switch with 14 pins. This one has the steering switch used on later w108 that controls the high/low beam switch, wiper speeds 2x, and of course horn.
• late cold start control logic with two standard 4 pins relays, and just one trigger cable to the CSV and FES.  No ground signals to either of them
• Embedded Hazard/flasher relay circuitry.  No additional sub-harness for the hazard/flasher relay. It comes right on main harness next to main light switch

The only modification made to this harness was to have larger T30 lines and the terminals ready for a BOSCH AL69X internally regulated alternator.

At customer request ONLY ONE MOD comes to my mind that can be done easily on this harness and will look original, and that one is to have INTERMITENT WIPERS.  That functionality can be incorporated on this harness by using the IMPULSEGEBER (pulse generator) relay that came as. Option on w114 an w108.

Look for more detailed photos here:

https://wiredoktor.com/collections/chasis-w111

Best regards
Leonardo Peterssen
Www.wiredoktor.com

75

General Discussion / Re: Position of the crankshaft seal

« Last post by Figoulu on August 31, 2025, 09:29:54 »

So… back to the garage
Today as everything is back together I was planning to begin the tuning of the air/ fuel mixture basing my work upon this very useful forum of course…

As I was planning to have the engine ready at its running temperature an oil leak appeared…

Hard to see as is but probably between the engine and the gearbox…
What would you envisage ?
If this is the same sort of seal as the last one I would probably have to remove engine/ gearbox together? (Once again)😁😁

Thanks for your feedback 👍

76

General Discussion / Re: Position of the crankshaft seal

« Last post by Figoulu on August 31, 2025, 09:24:50 »

Where can I buy this Viton seal for my 280SL? Vendor name? Part number?
Thanks for any pointers.

I have no idea as the mechanic did the overhaul himself…
Does niemoller or Mercedes is out of stock ? I believe for those who can get the spec, that it’s available out of the official branded dealer as Mercedes nor niemoller make their seals.

77

General Discussion / Re: Position of the crankshaft seal

« Last post by WRe on August 31, 2025, 07:31:26 »

Hello Alfred,
if I see it correctly, the seal used is from Corteco. Material: FPM (fluoride rubber)/ACM (polyacrylate rubber)
- https://www.ecatcorteco.com/web/corteco/en/PKW/74/538/722/applicationSearch.xhtml?result=1756624683939&showResult=1
- https://www.daparto.de/Teilenummernsuche/Corteco/20033412b?modelId=9310a012

An alternative would be on from Elring. Material: FPM (fluoride rubber)
- https://web.tecalliance.net/elring/qa/parts/cars/part/10/284.785/detail?targetId=722&typeNumber=722#@brc/brands:Auto;targetType:cars;skipHistory:true;suppressAutoSelection:true/models:MERCEDES-BENZ;targetType:cars;manufacturerId:74;skipHistory:true;suppressAutoSelection:true/cars:PAGODE%2520(W113);targetType:cars;manufacturerId:74;modelId:538;skipHistory:true;suppressAutoSelection:true/assem:280%2520SL%2520(113.044);targetType:cars;targetId:722;typeNumber:722/lnkparts:Dichtungen;targetType:cars;assemblyGroupId:100223;targetId:722;typeNumber:722/assignedPartDetail:284.785;targetType:cars;brandId:10;articleNo:284.785;targetId:722;typeNumber:722
- https://www.daparto.de/Teilenummernsuche/Elring/284785?modelId=9310a012

Best regards
...Wolfgang

78

Electrical and Instruments / Re: Pertronix and plug wires

« Last post by Benz Dr. on August 31, 2025, 06:45:01 »

Not much that I know of. 560SLès use electronic ignition and solid wire cables. You can run into radio interference with systems MDS systems using high voltage but our cars use relatively low voltage systems.

79

General Discussion / Re: Position of the crankshaft seal

« Last post by 66andBlue on August 31, 2025, 06:27:54 »

One thing to point out regarding seal material. The brown ones are most likely to be a high temperature material similar to the trade name Viton. The black seal will most likely be a Nitrile. The Viton will have better properties and is recommended. There are a lot of different versions of these seals. 

Where can I buy this Viton seal for my 280SL? Vendor name? Part number?
Thanks for any pointers.

80

Electrical and Instruments / Pertronix and plug wires

« Last post by George Lollar on August 31, 2025, 04:37:47 »

Pertronix in its installation instructions says with emphasis not to use solid plug wires with their system.  I believe this is in conflict with our recommendations to use solid copper non-resistant leads; what have 113 owners done with this?  What are the consequences of ignoring this instruction?