I have a 02 Mercedes S430 that everything works but won't turn on.
340

Asked by MiguelAFlores Dec 20, 2016 at 08:42 PM about the 2002 Mercedes-Benz S-Class S 430

Question type: Maintenance & Repair

2 Answers
35,335

lrodri911 answered 7 years ago

You need to narrow down the problem. When you say it won't turn on, I'm assuming it turns over but it won't start. If that's the case, make sure you have a good fully charged battery, check battery voltage, it should be minimum 12.4. If battery is ok, spray some quick start in the throttle body to see if it'll start for a bit, if it does, it means it's not getting fuel past the injectors. Check fuel filter,check fuel pressure. If fuel is ok, check spark on spark plugs.

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