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Questions about a 1978 450 SEL

1043 Views 9 Replies 3 Participants Last post by  melanch68
Hi guys, I just bought a one owner 1978 450 SEL, the car has 112K miles and runs very well, the car is rust free needing only a paint job and minor interior restoration. However, becoming familiar with the car, I have noticed a couple of things and I will appreciate your comments.
First, the car seems "slow" compared with my previous MB (I have owned a 1973 450 SLC, 1985 380se, 1995 e320, and currently I'm the owner of a 2004 S500, too bad that I don't have time to learn more about these babies. However, being part of this forum is a good start) I understand that this car is not only 32 years old but also very heavy. However, is this normal? the engine is very strong and smooth, no shaking while idle.
My other question, I had a leak from a small square part, sort of a little box with a black cap, located in the passenger side, a couple of hoses are connected to it and several wires as well. The fluid is color a combination of green/blue/yellow and the leaking was present just for one day. I checked this morning and I didn't see a drop. Do you know what this could be?

Thank you for your help. Best regards
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No, this part is located in the upper left hand-side (looking at the engine from the front of the car) the battery is located in the lower left hand-side. Thank you for your time.
Yes, that is the part. Any advice?
Thank you very much for your help and time answering my questions. You are right, once in the highway, after 50 mph, runs fine. I love the car, now I'm debating between European vs. American bumpers and headlights.
Hey Scratcher, thank you for your answer. Yes, once it's warmed up, runs fine. The car is in the shop now, I'm asking my mechanic to work on several things, among them, the distributor.
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