My set only goes up to 10 mm, and the plug requires something larger than that. Anyone know the size so I can buy the correct hex bit?

Thanks.

14 mm.

You can also get a 9/16" at most hardware stores which is equivalent to 14mm. Get a piece of pipe that fits over the wrench handle to use a cheater bar. Those plugs are usually tight.

I have a set, I got it at either AZ or AAP about 10 years ago.

Mine is OEM brand, IIRC, and has a 12, 14 and 17mm part. They are 1/2" drive.

Ive always needed to use a LOT of torque to un-seize the diff plugs.

__________________
Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (116k)
1991 350SD (206k)
1991 300D (228k)
2008 ML320 CDI (199k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (267k)

Past Diesels:
1983 300D (228K), 1985 300D (233K), 1993 300D 2.5T (338k), 1993 300SD (291k)

As has been mentioned before, be sure to loosen the fill plug first. If you can`t get it out and you drain the fluid........


I always add some Anti-Seiz compound to the threads before I put the plug back in.



Charlie

__________________
there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

14 MM

Here is the set you need.
9 Piece 3/8" and 1/2" Drive Metric Hex Bit Socket Set



.

__________________
ASE Master Mechanic
https://whunter.carrd.co/

Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
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Technical Quality Auditor.
Automotive Technical Writer

1985 300SD
1983 300D
2003 Volvo V70

https://www.boldegoist.com/

Placed an order for one this morning.

This is a really nice tool if you can find one. It came as part of the tool kit on pontons. It is very nicely designed and I use it on all of my cars.

Attached Thumbnails

 

__________________
Len
'59 220S Cabriolet-SOLD and living happily in Malta
'83 240D 351,500 miles original owner-SOLD
'88 560SL 41,000 miles - totaled and parted out
https://sites.google.com/site/mercedesstuff/home
'99 E300 turbo 227,500 miles
'03 SLK320 40,000 miles - gave to my daughter
'14 Smart electric coupe 28,500 miles
'14 Smart electric cabriolet 28,500 miles
'15 Smart electric coupe 28,000 miles

I want that ponton tool!!

__________________
Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (116k)
1991 350SD (206k)
1991 300D (228k)
2008 ML320 CDI (199k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (267k)

Past Diesels:
1983 300D (228K), 1985 300D (233K), 1993 300D 2.5T (338k), 1993 300SD (291k)