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Just bought a 1985 280 sl Euro project car

2.6K views 24 replies 12 participants last post by  107merc  
#1 ·
Hi everyone. You folks have quite a community happening here. I hope folks don't mind if I ask for help from time to time.

I just had my 1985 280 sl euro delivered yesterday. It is a project car so to speak, in that the transmission has been removed and torn apart by someone, and left in pieces. It came with a used transmission that the previous owner bought from somewhere reputable, but it does not match up. It also came with a box full of new trany parts, filters, and gaskets ect., and some new tune-up parts as well that were not installed. I haven't inventoried them all yet.

She looks pretty good on the outside but on the inside the seats are a little rough and the carpet needs a serious cleaning. The body sustained some lower turn signal and running light damage during delivery. It still has a euro front tag on it.

I've been searching for a used tranny but I have no way to cross reference the trany. Can someone tell me if this transmission was used in other six cylinder cars in the mid 80's that would be a fit?

Looking forward to diving into this car but I first want to get it running to see how everything is working on the road.

Thanks for now,

gtwyric
 
#5 ·
Thanks for the quick responses guys. Yeah, it is an auto trany. I don't have any pics yet, but I will take a few soon. It is white with a grey leather interior, and it has both a hard and soft top. Haven't seen the soft top up yet but it is supposed to be in decent shape. I'm hoping for the best. It was brought to Montana several years ago from one of the Carolinas. The owner started to do the trany repairs locally but he passed away. His wife tried to have the work continued but she wasn't really up to the challenge and it ended up just getting torn apart by someone who left it a mess. I bought it from her.

Anyone have any idea on cross reference numbers on these tranys to other models? There are numbers in two places on my case, one number half way up the case and one number on the opposite side just above the pan. So far I haven't had any luck.

Thanks
 
#12 ·
Come to Jesus talk

Before you get started with your project you need to realize and come to terms that a) you will never see more than small fraction of money you invest into the car back b) it is by far cheaper to purchase operational car and make it nice than to make project car operational.

If you understand that your project is hobby, and treat it any car-related expense as a 100% write-off... well, enjoy the ride, and welcome to the asylum!
 
#13 ·
Before you get started with your project you need to realize and come to terms that a) you will never see more than small fraction of money you invest into the car back b) it is by far cheaper to purchase operational car and make it nice than to make project car operational.

If you understand that your project is hobby, and treat it any car-related expense as a 100% write-off... well, enjoy the ride, and welcome to the asylum!
What?!

Now you tell me
 
#14 ·
Thanks guys! I intentionally wanted a project car. Not necessarily this car. I was looking at an 89 XJ6 and a 79 vette, but this one interested me more. I intend to do most of the work myself, other than rebuilding a trany. Don't know if I would adjust the valves on the engine either. Been a long long time since I adjusted solid lifters in a car. Right now I'm building new cabinets for our kitchen so I can't pull it into the shop just yet, but I'm looking forward to working on it. Hopefully by the time I get a trany figured out I will have space to pull it into the shop.

The trany that came out of this car has 722 306, but it is ten digits in from the start of a long number. Same for the working trany that was purchased that doesn't fit. It has 722 112 buried in the same place within a along number. This does help though.

Thanks again,

Ric
 
#15 ·
I would just find a good used transmission, maybe change a few seals and call it a day. Good used transmissions are cheap enough, there isn't a huge demand I'd bet you could get one for 2-300$. I never understand why anyone would drop thousands on a rebuilt transmission but what do I know.
 
#21 ·
I'm starting to figure out the numbering system. Looks like that there are a number of tranys that would bolt but the gearing would be off on many of them. I'm looking for a used one that I can have the new parts that came with this car installed in the trany if possible. The real challenge is to find one that has gearing close enough that there won't be a performance hit.

Turns out that the used operating trany (722.112) that came along with the car fits a a 1980 ish 280 CE and one of the turbo diesel models as well. At some point I will be parting with this.

Living in Montana you get used to driving a ways for things you need. Shipping works as well, but when it is closer than 400 or so miles then driving can be cheaper if you have the time. There is a trany in Idaho falls but the guy couldn't find the numbers today. I am going to send a picture of my number on Monday to see if he can reference it then.

Thanks for the support guys,

Ric
 
#22 ·
Overdue update

Hi everyone,

Since everyone was so kind I felt I needed to give an update on where this project is now. I ended up sending off my trany case and a case full of parts to Silver Star Transmission in Edmond OK. They were recommended to me by a local transmission shop. They were very helpful up front and took a case full of a completely torn down trany and the new parts I had and rebuilt and dyno tested and hydraulic tested everything, including the converter. I got it back a couple of weeks ago but I have not installed it yet. Total cost to me was $1895 including shipping both ways. !2 month warranty included. They were extremely accommodating to my story and went out of their way to handle the shipping from me to them at their rates.

They are Mercedes transmission specialists. Here is their link if anyone is interested in checking them out. silverstartran

I hope to get it installed in the next couple of weeks and finally get this thing moving to finally test it out. I realized when doing the paperwork that this car had been titled but not driven much in Montana. So it has only been driven around their yard and into the local shop that did the trany removal. So it has been 3-4 years since it has seen any real road time and probably 18 months since it has been started.

Anyway, everyone was so welcoming initially that I felt I owed everyone the update. I will give some periodic updates as things progress.

Thanks again everyone,

Gtwyric
 
#23 ·
DRAIN THE FUEL!

Pull the fuel tank strainer and have a look see.


Blowing out the fuel lines front to back might be a good idea too.

Change the oil.

Rotate the engine by hand with the plugs out and a couple of drops of oil in the cylinders.


There's more that people will be happy to add to this list.

Or you can gamble and just start the thing.
 
#24 ·
Thanks Nobby. I won't be gambling. I will cover all the bases before I put the fire to it. I also have to evacuate the transmission cooler lines and blow them out too. Have new fuel filter, tune up parts, and oil filter to install. Will be checking all the hoses and vacuum lines too.

Plenty to do!