How do you change the spark plugs in a Mercedes Benz 500 sl?

Answer 1

I would take a few of the plugs out of the engine and check them for wear. You might not need to replace the plugs because of the efficiency of the electrical system. You might just need to clean your plugs and re-gap them. If you do need new plugs: go out and buy 16 brand new plugs for the car,, there are 2 plugs per cylinder. The parts store will have the info for the right size. Plugs in these cars should last a minimum of 25,000 miles. Get a proper plug socket and make sure your socket slides all the way down so you don't break the ceramic insulators. I like to rub a very very small amount of an anti-seize grease on the bottom of the plug's threads...it helps when you need to remove the plugs later. Always hand screw the plugs in as far as you can before using the socket on them. Again, spark plugs are fragile and break easily. If you're asking this question, I assume you're a newbie at this. Remove a plug wire at a time so not to cross wires...which is hard to do, but not impossible. And don't man handle the plug wires...they're silicone and can break easily, which will make your car idle like a tractor. And lastly, make sure the car is cold, otherwise you'll sear your hands.