SL/R129: what year did the engine change from 302 to 322
#1
what year did the engine change from 302 to 322
hp? i think it was from a head change 4 valve to 3 valve?
also wasnt there a transmission change to electronic 5 speed? when was it?
thanks
also wasnt there a transmission change to electronic 5 speed? when was it?
thanks
#2
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The 5 speed transmission was introduced in 96, as I discovered to my cost when it failed in my SL600 last year. The new 3 valve per cylinder engine was introduced in 99 at the same time the instruments got silver rims. It was at this time the V12 was dropped because it was a bit of a dirty beast.
#3
wait now i am more confused, you say the 600 was
dropped in 99, i think there are 99 and up 600's i know there are 2002's because i sat in a 2002 SL 600 silver arrow. and kelly shows prices for 99up 600's
and did the 4 to 3 valve give the hp increase of 302 to 322?
and now did the new 2003 up sl go back the the 4 valve? if so were there problems w/the 3 valve engine?
thanks
and did the 4 to 3 valve give the hp increase of 302 to 322?
and now did the new 2003 up sl go back the the 4 valve? if so were there problems w/the 3 valve engine?
thanks
#4
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Originally Posted by ken garchow
dropped in 99, i think there are 99 and up 600's i know there are 2002's because i sat in a 2002 SL 600 silver arrow. and kelly shows prices for 99up 600's
and did the 4 to 3 valve give the hp increase of 302 to 322?
and now did the new 2003 up sl go back the the 4 valve? if so were there problems w/the 3 valve engine?
thanks
and did the 4 to 3 valve give the hp increase of 302 to 322?
and now did the new 2003 up sl go back the the 4 valve? if so were there problems w/the 3 valve engine?
thanks
#6
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Well it surprises me that the SL600 continued to 2002, I know it was dropped in Europe for emissions reasons which is why they had to switch V8s as well.
The engine and transmission for the SL500 was carried across largely unchanged from the R129 to the R230 and of course that has been replaced recently by a 7 speed in the R230. The bigger R230s - SL55/600 continue to use the same transmission that the R129 used.
The engine and transmission for the SL500 was carried across largely unchanged from the R129 to the R230 and of course that has been replaced recently by a 7 speed in the R230. The bigger R230s - SL55/600 continue to use the same transmission that the R129 used.
#7
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Originally Posted by ken garchow
what about the transmissions? when where the changes on them
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#9
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You said it. My 96 SL600 had one of the first and failed big time last year. Significant changes were made to the bearings for the 99 model year and this gearbox was carried forwards to the new SL, since replaced by the 7 speed box in the SL500.
#11
so is the 98 car vs 99 car that different?
i think i have learned from this site that 98-99 was a larger change year in the 129's than namy other years. different motor, transmission, interior items, mirrors, grill ,tail lights and wheel styles. is that it?
i ask because i found a nice 98 sport pano, but now think i should wait for a 99 up sport pano. are there any pluses to the 98 back cars other than money? say does the 4 valve feel faster, easier to tune? is the early 5 speed AT geared better or a better tranny than the electronic one, different rear end gears?
thanks
by the way i drove a 2002 sl 600 silver arrow today, very nice car!!
i ask because i found a nice 98 sport pano, but now think i should wait for a 99 up sport pano. are there any pluses to the 98 back cars other than money? say does the 4 valve feel faster, easier to tune? is the early 5 speed AT geared better or a better tranny than the electronic one, different rear end gears?
thanks
by the way i drove a 2002 sl 600 silver arrow today, very nice car!!
#12
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Originally Posted by ken garchow
i think i have learned from this site that 98-99 was a larger change year in the 129's than namy other years. different motor, transmission, interior items, mirrors, grill ,tail lights and wheel styles. is that it?
i ask because i found a nice 98 sport pano, but now think i should wait for a 99 up sport pano. are there any pluses to the 98 back cars other than money? say does the 4 valve feel faster, easier to tune? is the early 5 speed AT geared better or a better tranny than the electronic one, different rear end gears?
thanks
by the way i drove a 2002 sl 600 silver arrow today, very nice car!!
i ask because i found a nice 98 sport pano, but now think i should wait for a 99 up sport pano. are there any pluses to the 98 back cars other than money? say does the 4 valve feel faster, easier to tune? is the early 5 speed AT geared better or a better tranny than the electronic one, different rear end gears?
thanks
by the way i drove a 2002 sl 600 silver arrow today, very nice car!!