Just wondering if anyone knows how hard it is to change the differential oil in a 124(not limited slip)? Thanks in advance.

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88 300E
03 911 C4S
2008 Triumph Speed Triple

My pics --> www.BrettAdamsDesign.com

my back was really bothering me so i asked a local wrench to put my swepco 201 in for me - took him all of 20 minutes. two plugs - one on the side and a drain. be sure to take off the filler plug on the side first to make sure you can get it off before you drain it...

Also, there's a vent that you need to ensure is clean & serviceable.

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"If God had meant for us to walk, why did he give us feet that fit car pedals?" Sir Sterling Moss

Michael
2014 E63S Estate
2006 SLK55
1995 E500
1986 Porsche 944 turbo

You'll need a 14mm hex socket (found at most auto parts stores -- got mine at Autozone) and a nice long socket for good leverage.

If the bolts haven't been removed in awhile they'll be pretty tough to get out. With the car jacked up, get underneath there and use your foot for more strength if you have to. USE A JACKSTAND! That's how hard it was for me to loosen those large hex bolts, although mine was being changed for the 1st time at 198k miles

Get some 90w diff fluid. It took a little over 1.5 quarts to fill my 300E. Also, a pump is recommended to get the fluid up into the hole as there's little room to work up there where the fill hole is located. Pump was $5 at O'Reilly's, and it screws onto the top of the lube containers.

Good luck!

~Paul

The job is a piece of cake. It wasn't that easy to find the 14mm hex key though. I found a 14mm (long) key at a local industrial hardware supply shop for about 8 bucks.

I hoped that Craftsman made one since most of my stuff is Craftsman, but no such luck...

The lube really smells awful, so plan to get rid of it right away rather than having it sit in your drain pan stinking up your garage.

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D.H.

04 ML500
02 E430

Experience is something you don't get until just after you need it.

Synthetic differential lubricant should be considered. Low differential cost (sorry, just couldn't help it).

Same issues as for engine and transmission.

It is simply better.

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George Stephenson
1991 350 SDL (200K and she ain't bent, yet)
former 2002 E320 4Matic Wagon - good car
former 1985 300 CD - great car
former 1981 300 TD - good car
former 1972 280 SEL - not so good car
a couple of those diesel Rabbits ...40-45 mpg

I too run exclusively synthetics, and use Red Line 75W-90 in all my cars. Great stuff, and can handle the high temps associated with sustained high speeds (like I'd drive like THAT )

__________________
"If God had meant for us to walk, why did he give us feet that fit car pedals?" Sir Sterling Moss

Michael
2014 E63S Estate
2006 SLK55
1995 E500
1986 Porsche 944 turbo

me no like synthetics - went with Swepco, a Porsche Club favorite.
check it out at www.swepcousa.com...