SL/R129: Which year R129 is the best, least trouble free?
Can anyone advise me what is the best year.....or worse to own? What should I look for or look out for when shopping for one?
Thanks
I bought a 99 320 v6 last lear FMBSH 23K on the clock...
So far I have spent about £2000 on the bloody thing
Gearbox leak,
MAF/MAS sensor,
Catalytic Converter,
Paint Work,
now needs new plastic windows in the softtop and the windscreen requires refitting to solve a small leak

It had 2 Services as well in that time... and I have found some rust inside one of the sills...
The SL's are good cars and are genrerally reliable but parts wear out like any other car...
I don't think the service history is the only answer to a reliable car
The problem with the SL is that you are paying new car money for a +6 year old car so expect 6 year old car problems and you won't go wrong...
MAF/MAS sensor, Paint Work,
I think that over all, the R129 is a car that have less problem than other cars from same catagori and year. It is´t for nothing that it´s called "safebox".
I bought a 99 320 v6 last lear FMBSH 23K on the clock...
So far I have spent about £2000 on the bloody thing
The older models seem to be more stable.
I would say the best production years were 1994 (pre-Facelift) and 1998 (last year of Facelift1-Models) - it depends on what you're searching for.
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The problem with the SL is that you are paying new car money for a +6 year old car so expect 6 year old car problems and you won't go wrong...I think that over all, the R129 is a car that have less problem than other cars from same catagori and year. It is´t for nothing that it´s called "safebox".

Rust on an _internal_ panel is worrying as it means that water got in to the car somehow so now you are faced with two tasks 1 find the leak 2 fix the rust...
The SL is built so well, most owners would not ever know that the car was rotting inside out in the event of a problem
have you taken your carpets up lately to check for water? I doubt you would find any water unless you did although it can be present in large quantities... The later paintwork sucks (post 98) I regularly see 10 year old cars with better paint than the last facelift models.This with possible rust issues could mean that the older cars are a better choice althought the v6 is certainly nicer than the older straight 6
Last edited by peterchurch; Jun 15, 2005 at 05:05 AM.
The SL is built so well, most owners would not ever know that the car was rotting inside out in the event of a problem
have you taken your carpets up lately to check for water? I doubt you would find any water unless you didI think that over all, the R129 is a car that have less problem than other cars from same catagori and year. It is´t for nothing that it´s called "safebox".
As for the rear window, as long as it's not cut, I used the MB plastic cutting polish. Brought them up like new!
my water was comming in on the passenger side in the same place
I think its something to do with the door seals
its very impressive how well the car hides water though

Hmm, are we talking about same thing? I purchase my SENDER UNIT, AIR-MASS UNIT for 13 EUR

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What is that? Do you have the article number. I used MB glass cleaner, and that was crap for plastic windows.
Hmm, are we talking about same thing? I purchase my SENDER UNIT, AIR-MASS UNIT for 13 EUR

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Is there a way to recode the SL key's? I think my neighbour's has lost its code due to low battery...
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Is there a way to recode the SL key's? I think my neighbour's has lost its code due to low battery...
Yes, You have to order a new key and code it into the computer in the car. You can code 8 keys into the car. What happens after that I don´t know.
EDIT: Ok, He did´t lost it I see now. Lost of batteries should not force recode. However, that could be done if the car have lost the code.
Last edited by SL60 ///AMG; Jun 15, 2005 at 03:52 PM.
A.j.



