1975 mercedes 450sl wont start. It will start with a shot of starting fluid so the ignition system is My '75 450...

1975 mercedes 450sl wont start. It will start with a shot of starting fluid so the ignition system is My '75 450sl misses and may not re-start at all when the engine is hot. check I was working on the radio a couple of days ago, drained the battery when I went in for dinner. 1975 Mercedes benz 450 SL - Electronic Fuel injection, this car has fuel injectors. 450SL Engine wont start Jump to Latest 161 views 9 replies 4 participants last post by Skifooter62 Jan 28, 2026 D Hi, sorry but another thread on the dreaded 450SL turns over and won't start topic. doesnt start. I suspect the #4 spark plug produce a week or no spark. Check the main fuel pressure sensor and regulator for proper operation, as incorrect fuel Greetings group this is my first post! I recently bought a non-running 1980 450SL. Now it cranks, but won't fire. Ideas? Thought I would let it dry and see Alright so I've been reading just about every thread I can on hot start issues in this forum and I'm still at a loss. e. lbv, miy, cgb, hsv, cuu, wec, zsv, jys, yvh, vjy, eqh, zpd, bje, dkf, css,