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Posts Made By:
Alec300SD
Forum:
Diesel Discussion
10-05-2025, 05:38 PM
Replies:
19
W123 not priming
Views:
265
Posted By
Alec300SD
To get fuel to the injectors: 1) Disconnect...
To get fuel to the injectors:
1) Disconnect the hard lines at the injectors (17 mm flare wrench), and loosen the nuts on the hard line brackets (8 mm wrenches).
2) Unplug the glow plug harness...
Forum:
Diesel Discussion
10-03-2025, 05:25 PM
Replies:
14
W123 rear window regulator questions
Views:
2,757
Posted By
Alec300SD
Sorry, I did not listen to the video initially,...
Sorry, I did not listen to the video initially, and I did not see the rectanglar piece.
I think you may need a springy conical star washer in addition to the wave washer to take up the play. Part...
Forum:
Diesel Discussion
10-03-2025, 11:35 AM
Replies:
14
W123 rear window regulator questions
Views:
2,757
Posted By
Alec300SD
The bolt has a nylon slide, that fits into the...
The bolt has a nylon slide, that fits into the slotted channel.
The part number is 1267200142.
Available from Peach Parts, the forum sponsor.
Forum:
Diesel Discussion
09-25-2025, 11:56 AM
Replies:
5
1984 300D vacuum hose connections
Views:
141
Posted By
Alec300SD
Vacuum schematic sticker is usually on the...
Vacuum schematic sticker is usually on the radiator support.
Forum:
Diesel Discussion
09-12-2025, 08:40 PM
Replies:
5
OM603 Rough Idle Slow to Rev
Views:
159
Posted By
Alec300SD
Engine out of phase with the injection pump? ...
Engine out of phase with the injection pump?
Injection pump rotates once for every two engine revolutions.
When the injection pump was reinstalled with new elements,
did you rotate the engine...
Forum:
Diesel Discussion
08-23-2025, 03:00 PM
Replies:
13
My 300d is leaking too much oil
Views:
1,685
Posted By
Alec300SD
Apply ZEP Heavy-Duty Citrus Degreaser full...
Apply ZEP Heavy-Duty Citrus Degreaser full strength (with a manual pump garden sprayer) to your engine.
Both are available at your local Home Depot.
Try to avoid electrical connectios
Rinse with...
Forum:
Diesel Discussion
07-23-2025, 01:04 AM
Replies:
14
Removing driver's seat. Inaccessible rear bolts
Views:
678
Posted By
Alec300SD
IIRC, you must slide the seat all the way...
IIRC, you must slide the seat all the way rearwards, then raise it up as high as possible.
(If the seat is not motorized, you may have to remove the rear bench seat so you can
stand/crouch behind...
Forum:
Diesel Discussion
07-10-2025, 10:44 PM
Replies:
3
Source for Torpedo Fuses?
Views:
463
Posted By
Alec300SD
I would go with Flosser Ceramic fuses, available...
I would go with Flosser Ceramic fuses, available at NAPA online.
https://www.napaonline.com/en/p/ATMN171211?srsltid=AfmBOopNaxFIYR5TvEPIHpYGv2NYuToGpV_KQN73J96lWxru0cXHYETxGsk&gQT=1
Forum:
Diesel Discussion
07-09-2025, 03:30 PM
Replies:
3
What kind of screw is this??
Views:
480
Posted By
Alec300SD
Part looks like a rubber isolation buffer mount,...
Part looks like a rubber isolation buffer mount, a similar (or exact part) is also used for mounting the air box on various models.
The rubber is vulcanized to a top and a bottom stud, and acts to...
Forum:
Diesel Discussion
07-09-2025, 02:21 PM
Replies:
7
OM 616 Injector Rebuild Service
Views:
769
Posted By
Alec300SD
Contact info for Greazzer is on his new website...
Contact info for Greazzer is on his new website home page, which went live February 24, 2025.
He has provided me top notch service, multiple times, over the years.
...
Forum:
Diesel Discussion
06-25-2025, 01:16 PM
Replies:
4
How to stop my oil leak. 83 300sd
Views:
632
Posted By
Alec300SD
I believe Bosch Part Number 1420283001 is the oil...
I believe Bosch Part Number 1420283001 is the oil seal used for your RW 375 governor shaft.
Spaco is an aftermarket maker of this simmerring (17mm OD x 11mm ID X 4mm Thickness)
Forum:
Diesel Discussion
05-03-2025, 11:53 AM
Replies:
8
changing a OM617 lift pump
Views:
758
Posted By
Alec300SD
Get the Bosch DGK301 rebuild kit, and the Bosch...
Get the Bosch DGK301 rebuild kit, and the Bosch 2 447 010 038 primer pump beforehand.
https://www.peachparts.com/shopforum/1785303-post1.html
...
Forum:
Diesel Discussion
04-25-2025, 10:33 PM
Replies:
12
Expansion Valve Removal - W126
Views:
4,101
Posted By
Alec300SD
Long handled wrenches will give you better...
Long handled wrenches will give you better mechanical advantage.
Remove the small compression fitting first.
Large open end wrench (looks like 24 mm or greater) on the flats of the body (parallel...
Forum:
Diesel Discussion
04-20-2025, 02:01 PM
Replies:
12
Expansion Valve Removal - W126
Views:
4,101
Posted By
Alec300SD
These links may help. ...
These links may help.
https://www.peachparts.com/shopforum/diesel-discussion/130072-replacing-expansion-valve-300sd.html
https://www.dieselgiant.com/repairyourac.htm
Forum:
Diesel Discussion
04-14-2025, 01:08 AM
Replies:
16
'81 300SD where to confirm original seat color?
Views:
1,570
Posted By
Alec300SD
https://www.peachparts.com/shopforum/attachments/b...
https://www.peachparts.com/shopforum/attachments/bodywork-repair-paint-tools-tips-tricks/9808d1057698127-how-do-i-find-paint-code-plate92300d25.jpg
Last 3 digits in 4th line in left column, are the...
Forum:
Diesel Discussion
04-13-2025, 11:10 PM
Replies:
16
'81 300SD where to confirm original seat color?
Views:
1,570
Posted By
Alec300SD
From the data plate the original interior...
From the data plate the original interior upholstery color was 131 (Black MB-Tex).
If it were Palomino (AKA Date) it would be code 134....
Forum:
Diesel Discussion
03-31-2025, 04:04 PM
Replies:
3
What are these 240D thingies?
Views:
1,019
Posted By
Alec300SD
Previous thread may be helpful -...
Previous thread may be helpful - https://www.peachparts.com/shopforum/diesel-discussion/411076-accelerator-linkage-part-number-240d.html
Video refereced in post 5 shows the missing short throttle...
Forum:
Diesel Discussion
03-30-2025, 10:41 PM
Replies:
3
What are these 240D thingies?
Views:
1,019
Posted By
Alec300SD
Picture 2 - Electrical connector for (missing)...
Picture 2 - Electrical connector for (missing) cruise control actuator assembly (?).
Picture 4 - Ball end of connection for (missing) cruise control actuator rod (?).
Picure 2 - Connector looks...
Forum:
Diesel Discussion
03-23-2025, 10:14 PM
Replies:
15
240D won't shut off
Views:
1,735
Posted By
Alec300SD
X2. Vacuum Control Valve (VCV) emulates the...
X2. Vacuum Control Valve (VCV) emulates the vacuum throttle response of a gasser = input signal for the automatic transmission.
(Vacuum increases with acceleration)
Forum:
Diesel Discussion
03-18-2025, 12:38 PM
Replies:
2
85 300CD Radio and Window Dead
Views:
495
Posted By
Alec300SD
Recheck fuses, swap fuses from circuits that...
Recheck fuses, swap fuses from circuits that work to suspect circuits (Fuse B = red 16 amp, Fuse 4 = white 8 amp),...
Forum:
Diesel Discussion
03-12-2025, 12:07 PM
Replies:
12
WTB palomino drivers seat cover 1981 300SD
Views:
1,358
Posted By
Alec300SD
Try to get the passenger spring box seat bottom...
Try to get the passenger spring box seat bottom from a late low mileage W126 sedan.
They are firmer by design and will fit into a W116, W123 or a W126. BTDT.
The 500SE or 500SEL cars typically...
Forum:
Diesel Discussion
02-23-2025, 03:37 PM
Replies:
77
Sticky:
What did you do to your diesel Mercedes today?
Views:
24,256
Posted By
Alec300SD
1) Poor connection at the tach amplifier plug on...
1) Poor connection at the tach amplifier plug on the left fender.
(Corrosion and/or splayed open female receptacles in the socket.)
The tach amplifier looks like a small black trash can.
2)...
Forum:
Diesel Discussion
12-31-2024, 08:00 PM
Replies:
6
1983 300d w123 steering lock mechanism stuck
Views:
1,134
Posted By
Alec300SD
Yes. Keep grinding until the steering pin is...
Yes. Keep grinding until the steering pin is gone.
Then the steeing wheel will lock (quoth the raven) nevermore.
Happy New Year!
Forum:
Diesel Discussion
12-29-2024, 12:53 PM
Replies:
6
1983 300d w123 steering lock mechanism stuck
Views:
1,134
Posted By
Alec300SD
I only drilled out the material of the steering...
I only drilled out the material of the steering lock pin (OP called it a "ball"), to free up the locked steering wheel.
The OP hadn't yet removed enough material from the locking pin.
Much...
Forum:
Diesel Discussion
12-28-2024, 12:43 PM
Replies:
6
1983 300d w123 steering lock mechanism stuck
Views:
1,134
Posted By
Alec300SD
Use a cobalt drill bit that is slightly larger...
Use a cobalt drill bit that is slightly larger than the hole that the ball rests in.
You need to drill out all of the material of the ball so it won't catch on the walls of the hole.
The metal is...
Forum:
Diesel Discussion
12-26-2024, 08:57 PM
Replies:
5
Removing 300td drivers seat with height adjustment stuck
Views:
1,016
Posted By
Alec300SD
The seat height adjustment mechanism can get...
The seat height adjustment mechanism can get stuck from lack of use, due to corrosion and dried grease.
Try directing the air flow from a hair drier at the outside chair rail to soften the grease...
Forum:
Diesel Discussion
11-25-2024, 12:26 PM
Replies:
4
1985 300D Hazard switch wiring repair.
Views:
737
Posted By
Alec300SD
From pages 297 & 298 of the Haynes Repair Manual...
From pages 297 & 298 of the Haynes Repair Manual # 63012 (ISBN 0 85696 697 5):
Terminal 31, 0.75mm brown wire
Terninal L, 1mm black/white wire
Terminal R, 1mm black/green wire
Terminal 49a,...
Forum:
Diesel Discussion
10-23-2024, 01:14 PM
Replies:
21
bringing an old 240D back into service
Views:
1,552
Posted By
Alec300SD
Thanks for clarifying you have a W115. The...
Thanks for clarifying you have a W115.
The correct MB part number is 1156780820.
The MSRP for the factory part is $167.
It is available at Peach Parts, as well as any physical or online MB...
Forum:
Diesel Discussion
10-22-2024, 01:48 PM
Replies:
21
bringing an old 240D back into service
Views:
1,552
Posted By
Alec300SD
According to the EPC, 1236700239 is the correct...
According to the EPC, 1236700239 is the correct part number for the REAR windshield.
The FRONT windshield part number is 1236700139.
Forum:
Diesel Discussion
10-08-2024, 10:54 PM
Replies:
42
1982 240D Euro idle & oil pressure
Views:
2,413
Posted By
Alec300SD
Restriction in the positive crankcase ventilation...
Restriction in the positive crankcase ventilation hose/system, or a bit too much blowby can cause your symptoms.
See if the idle improves when you disconnect the breather hose atop the valve...
Showing results 1 to 30 of 500
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