Converting 280S auto to manual?

More threads by Nab

Nab

Distinguished
Messages
80
Points
24
Location
Perth Australia
I've been thinking about selling my 280S for a while, just feel like it's not pushing all my buttons. I've checked out a few other brands of classic cars and have been disappointed with whats on offer (except for a burgundy Triumph 2500S currently for sale on Carsales - it's absolutely mint - shame my 198cm frame doesn't fit in it). I did drive a manual and it was so much fun (car was average though) - I think the manual transmission is what I'm after.

Not many manual W116s or parts in Australia. Any ideas where to look? Mainly the pedal set and clutch/flywheel parts. Any other options on transmissions other than the 4-speed? My owners manual mentions a 5-speed option but I think hen's teeth would be easier to find...
Maybe even a 5-speed supra gearbox (was a common conversion on old Holdens)?

Done a couple trans swaps 20+ years ago so I have a rough idea on tailshafts, gearbox mounts etc.. Worst case, if it goes pear shaped I can just put the auto back in.
 

Michel

The Prince of Arabia
Moderator
Messages
10,074
Points
775
Location
Sydney, Australia
What comes up for sale more often are 107 series 280 models with manual transmissions
 
OP
N

Nab

Distinguished
Messages
80
Points
24
Location
Perth Australia
Thanks guys, have since found out that the M110 is externally balanced via the flywheel/flex plate so changing to manual might take a bit more engineering than just bolting it all up!
Also sounds like the $$$$ are adding up real quick...
 
Last edited:

Stephen Nemeth

Aficionado
Messages
8
Points
34
Location
Burnaby, BC, Canada
Converting to a manual is doable, but comparatively expensive. I swapped a MB 716.644 6 speed transmission into my 1983 500SL. I used a Kangaroo team adapter kit and shifter. They also sell used transmissions. I sourced an R107 clutch pedal assembly from Germany and a handbrake assembly from the UK. Total cost was around $3k Cdn. It was definitely worth it from a driving enjoyment perspective.
 
OP
N

Nab

Distinguished
Messages
80
Points
24
Location
Perth Australia
Converting to a manual is doable, but comparatively expensive. I swapped a MB 716.644 6 speed transmission into my 1983 500SL. I used a Kangaroo team adapter kit and shifter. They also sell used transmissions. I sourced an R107 clutch pedal assembly from Germany and a handbrake assembly from the UK. Total cost was around $3k Cdn. It was definitely worth it from a driving enjoyment perspective.
Thanks for that. Not sure I'm confident enough and know enough about the W116 to be ordering what I need from overseas!

Cheers again guys, I think I will put this idea to rest unless I find a cheap manual that is being wrecked!!!
 
Similar threads
Thread starter Title Forum Replies Date
WGB Pictorial - Rear end rebuild Part 2 - converting diff to 126 flanged style. Technical Information 1
G Converting Speedometer on 1973 350 SE Interiors 4
N M116 into 280S? Mechanicals 4
braminator123 280S - white over green - 140000km Gumtree/eBay/Facebook Listings 3
Sluggish W116 280s engine options Articles 6
6.9forever 280S with 8000 miles. Never seen anything like it (since 1975!) Mercedes W116 14
260ebenz $39,410 US 280S Mercedes? Gumtree/eBay/Facebook Listings 2
mrkozzy e-bay 280s parts car in Adelaide Gumtree/eBay/Facebook Listings 4
sergeich77 280s papyrus white Mercedes W116 6
motec 6.9 280s turbo Gumtree/eBay/Facebook Listings 3
motorpsycho Clutch or slave cylinder problems with Malaysian build 280S Mechanicals 7
B Povo's manky sister: 280S/M ADL Motorsports 4
Des Perhaps I should do this with my 280S? Talking Torque 0
L 280S - One Owner! Gumtree/eBay/Facebook Listings 9
E Need HELP on W116, 280S Rear Differential Parts...THX Mercedes W116 5
B Imagine this motor in a TeamW116 280S ? Gumtree/eBay/Facebook Listings 5
Michel Mercedes 280s 1976 $1500 reserve (4spd manual) Gumtree/eBay/Facebook Listings 0
B Black interior: 280S/SE in Victoria, Au Gumtree/eBay/Facebook Listings 0
Styria Splendid service by Mobile Auto Electrician. Articles 0
A Mb auto electrician Technical Information 4
S Auto Trans demise Articles 22
c107 Auto Brunch Event - St Ives Car Show Photos 70
S Auto Transmissions Articles 10
BenzBoy Auto trans fluid change. Talking Torque 10
S New auto Technical Information 0
S VW Duel Clutch Auto Mechanicals 9
motec 6.9 Silver Arrows/Auto Union Goodwood Talking Torque 0
motec 6.9 Auto Union V16 warm up Goodwood Talking Torque 6
Styria L.A. Auto Show Websites and Links 1
S 9 speed Auto Technical Information 16
Styria 1938 Auto Union Motorsports 6
Styria Auto Union - Type C - 16 cyl. Motorsports 0
Styria Auto Union vs. Mercedes '30s Motorsports 0
Styria Auto Union Racer - 16 cylinders Talking Torque 0
S Old timer Auto Electrican Mercedes R/C107 3
motec 6.9 Delahaye Auto P--n Talking Torque 4
Tony66_au 10 great auto urban legends Articles 5
Tony66_au Protector Auto Glass Recommended Suppliers 12
A Auto tranny modulator valve Mercedes W116 7
Michel F/S 190E RED Auto Gumtree/eBay/Facebook Listings 3
Des Launceston Auto Museum PART 2 Talking Torque 1
Des Launceston Auto Museum Talking Torque 3
Styria Auto Electrics Recommended Suppliers 7
Andrew280SEL W126 4-speed auto to W116? Mechanicals 26

Similar threads

Top