MB 300 SD....Thoughts On A Diesel Engine? - Mercedes-Benz Forum

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post #1 of 12 (permalink) Old 06-17-2017, 02:21 PM Thread Starter
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MB 300 SD....Thoughts On A Diesel Engine?

Hi,
Looking at buying a MB?

Have always been in love with the 420SEL, but...

Noticed the 300SD, I assume it would have the same legroom as the 420 SEL?

Have a few friends with diesels and they seem to love them?

Wondering which way, experienced owners would go on this choice....

Between these two cars!!!
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post #2 of 12 (permalink) Old 06-17-2017, 03:22 PM
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SD is short wheelbase. SEL is long wheelbase (L)
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post #3 of 12 (permalink) Old 06-17-2017, 03:54 PM Thread Starter
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Hi,
Hmmmm.....I thought they both used the W126 frame???
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post #4 of 12 (permalink) Old 06-17-2017, 05:42 PM
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There are SDL's also, which are the same long wheel base. (For that matter, there are SE's, too, which are gas engines on the shorter wheel base.) All of the difference is in the rear seat leg room.

John
"Real engines don't have spark plugs!"
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post #5 of 12 (permalink) Old 06-17-2017, 05:48 PM Thread Starter
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Hi,
I have actually driven a 420 SEL and don't remember being cramped?

As I am 6'7" and 275 this is something to find out!

Just tire kicking I guess until I can get out and actually sit in the 300SD which I guess came in the 116 and 126 body.
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post #6 of 12 (permalink) Old 06-18-2017, 09:17 AM
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As mentioned, the 300SDL and the 420SEL share everything but the drivetrain and sooty left tail light.

A 300SD shares the same body as a 300SE.

If you can find a decent diesel, I'd suggest that you leap as they are becoming scarce. The simplicity and durability of the engine make them long term keepers. That is not to say however that they don't have their own set of peccadillos to keep an eye on. Good luck.
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post #7 of 12 (permalink) Old 06-18-2017, 09:41 AM Thread Starter
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Hi,
Thanks!

A decent diesel, being the 5I turbo model, I presume?
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post #8 of 12 (permalink) Old 06-19-2017, 08:19 AM
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Not a diesel guy but I have read that the 300SDL is better than the 300SD. More powerful and valves do not need frequent adjustments. MB diesels are robust for sure. And people who own MB Diesels swear by them and love them.

However, it appears that 300SDLs are difficult to come by. I have not seen one in the Tampa area for sale for a long time.

I personally prefer the long wheelbase version of W126's. And among gas vehicles, the 420SEL has the advantage that you do not need to deal with the added complication of the self leveling suspension. But with the 560SEL, you do get the rear adjustable seat.
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post #9 of 12 (permalink) Old 06-19-2017, 08:52 AM Thread Starter
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Originally Posted by hugo2648 View Post
Not a diesel guy but I have read that the 300SDL is better than the 300SD. More powerful and valves do not need frequent adjustments. MB diesels are robust for sure. And people who own MB Diesels swear by them and love them.

However, it appears that 300SDLs are difficult to come by. I have not seen one in the Tampa area for sale for a long time.

I personally prefer the long wheelbase version of W126's. And among gas vehicles, the 420SEL has the advantage that you do not need to deal with the added complication of the self leveling suspension. But with the 560SEL, you do get the rear adjustable seat.
Hi,
Thanks!

I live outside Orlando and work in Charleston.

From what I have seen the trick is to find a good price on a low mileage car???

Most anything for $2000/$3000 has 250,000 miles on it?

I guess the owner is trying to get out of it, before the engine blows!
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post #10 of 12 (permalink) Old 06-19-2017, 09:39 AM
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In life, you have 3 options - cheapest...fastest...best...

Unfortunately, you can only chose two.

In general, I have found that gas 126's can be had for less money than a diesel - all other things being equal.
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