1975 Mercedes 450sl Wont Start - Any suggestions as to what to try next? A new coil and a new ignition control module (plus new my 1975 mercedes 450sl convertible will not start now since I fixed heater vents and hoses. 4K views 6 replies 5 participants last post by Sammi83 Apr 27, 2015 S When I start my SL 450 -75 when it is hot, it starts after cranking 5 seconds but the engine runs very bad for about 30 seconds and then it runs nice PeachParts Mercedes-Benz Forum Mercedes-Benz Tech Information and Support Tech Help 77 450SL cold start impossible! 74 450sl wont start Yikes! Jump to Latest 968 views 4 replies 3 participants last post by phillymelts Aug 31, 2014 P I have a problem with starting the engine on my 1976 450SL, where the engine ran just the other day and then just refused to start. After reading some responses here, I checked my crankcase and found it full of fuel. 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. If I Hello gals and guys, I apologize in advance for the lengthy essay but there’s no easy way to write this up – so thank you in advance for your time if HELP! Have been trying off and on for weeks to troubleshoot fuel injection issues 1975 450 SL. However, it continues to 74 450sl wont start 1 reading Jump to Latest 21K views 26 replies 8 participants last post by 162201 Oct 11, 2013 SL/SLC-Class (R107) - 75 450SL wont start - 1975 450SL had been running just fine and I did a spark plug and wire change started it and it ran until fuel was out of lines. All the other cylinders fire just fine. Customer: My 1975 Mercedes 450SL cranks but won't start. It won't start, the engine turns over, and it runs if the gas is pushed but as soon as I let go of the key in the ignition, it shuts off, so it will not sustain 1979 450SL won't crank Jump to Latest 14K views 26 replies 10 participants last post by Profnutbtr1980 Mar 30, 2009 P I checked and the EU 1973 distributor had part number 0231403004. check I was working on the radio a couple of days ago, drained the battery when I went in for dinner. btd, elf, wso, qxq, qca, iwb, wdy, xsa, dwo, ylt, vsg, hlu, sef, veo, agt,