1988 420SEL upgrades
#1
1988 420SEL upgrades
I want to add more horsepower and throttle response to my 1988 420SEL. I also want to put some suspension on it. That being said, I'm not exactly an expert on Mercedes Benz's so I was just looking for some help and/or suggestions.
#4
Fully synthetic fluids (engine, trans, diff), Bosch Platinum Ir Fusion plugs. Check your cap, rotor, and wires. Make sure your timing chain is not stretched too much (and check tensioners). Make sure all filters are fresh and run Premium (as you should anyway). Do all that and you will notice a real difference, especially in the response.
#5
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1991 560SEC Teal 1989 420SEL Ice Blue 1984 500SEC White
I echo with the exception of synthetic fluids.
These cars were built in the fossil fuel era. I use only MB fluids(trans.brakes,steering,radiator,differential ). Oil changes every 2500-3000 miles with fossil oil.
I have seen and heard horror stories about how the synthetics leak in older motors.
As far as performance Nitrous!
These cars were built in the fossil fuel era. I use only MB fluids(trans.brakes,steering,radiator,differential ). Oil changes every 2500-3000 miles with fossil oil.
I have seen and heard horror stories about how the synthetics leak in older motors.
As far as performance Nitrous!
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I echo with the exception of synthetic fluids.
These cars were built in the fossil fuel era. I use only MB fluids(trans.brakes,steering,radiator,differential ). Oil changes every 2500-3000 miles with fossil oil.
I have seen and heard horror stories about how the synthetics leak in older motors.
As far as performance Nitrous!
These cars were built in the fossil fuel era. I use only MB fluids(trans.brakes,steering,radiator,differential ). Oil changes every 2500-3000 miles with fossil oil.
I have seen and heard horror stories about how the synthetics leak in older motors.
As far as performance Nitrous!
![thumbs](https://mbworld.org/forums/images/smilies/thumbsup.gif)
#10
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280SE W116, 500SEL W126
How much are you willing to spend?
A free-flow exhaust and a fresh air-filter do wonders
I have a twin snorkel 560 airbox on my 500, it is good but, not as good as when I had a 'pod' filter on it, of course it was only really noticeable when I had my exhaust upgrades done
New plugs and a flush with injector cleaner is good too and don't forget the high-octane gas
I also run my W126 on synthetic, Shell Helix Ultra (Shells top of the range) and it is excellent
On start up when cold, my car is quiet and lively and does not leak a drop anywhere around the engine
A free-flow exhaust and a fresh air-filter do wonders
I have a twin snorkel 560 airbox on my 500, it is good but, not as good as when I had a 'pod' filter on it, of course it was only really noticeable when I had my exhaust upgrades done
New plugs and a flush with injector cleaner is good too and don't forget the high-octane gas
I also run my W126 on synthetic, Shell Helix Ultra (Shells top of the range) and it is excellent
On start up when cold, my car is quiet and lively and does not leak a drop anywhere around the engine