BOSCH 09850 Premium Spark Plug Wire Set

Have now put these on our e500 4matic and my S500 4matic and they fit perfectly -- just no no star on side. TIP: I always add a little bit of dielectric grease and vacuum out the spark plug hole BEFORE I pull the spark plugs out. Good to change these and the plugs every 60,000 miles. Always eep a couple of the old ones around just in case one of these is bad but has never happened so far. These do swing in price quite a bit though -- seems random. A year ago I paid $160 for the set and I just pain $240 now. Economy improves and more of these must get sold to us Mercedes owners LOL. I would not use a cheaper set -- seriously as you can get misfires. Hard to trace down sometimes. Good luck.

Exact fit for my 1999 G500! Outstanding product quality as it is genuine Bosch manufactured. New in the box and exactly as described. My M113 V8 engine runs perfectly now. I would purchase again if needed, but hopefully I will be good for another 100K miles. Thank you for your quick shipping and great price!

The braided heat shield is not as complete as OEM. But they work fine and install perfectly on 113 motor.

These are OEM quality.... If anyone says otherwise they don’t know what they are talking about. Fit my 2000 Mercedes CLK 430 Coupe Perfectly. Make sure you match the Letters with the correct location on Valve Covers. THEY ARE NOT ALL THE SAME LENGTH. 😁

These wires are perfect fit for V8 MERCEDES BENZ with 16 spark plug wires and seems like a bit more reponsive during acceleration and I also notice that the wire diameter is a bit larger than the original Mercedes wires. I made a cut to the OEM wire sleeve and found out that they are manufactured by BOSCH with a Mercedes star stamped on the metal heat shield. My advice to all Mercedes owner specially AMG's to buy Bosch wires and save yourself some money. The set of wire will cost around $300 plus at the stealership, this will cost $130 shipped from Amazon.

The wire set did not have the correct number of lettered wires. The count was correct but the lettering for Mercedes was not correct had to use one old wire.

Purchased from seller "German Auto Supply" and they are very helpful identifying country of origin for these 16 wires. The K wires are made in Spain & the G, H, L wires are made in Germany so I am perfectly with both countries.The wires are so new & STRAIGHT so when you plug into ignition coil, it may have slip off easily from the coil repeatedly. NO worries, simply let it sit overnight so the wires are used to the new bent angle and the next morning it's SUPER SUPER tight with the coil. I also use marker to write cylinder numbers into these 16 wires so it's easy for identification purpose.My M113 engine is now idling smoothly and I have no worry for the next few years.

Installed these on my 2004 E55 AMG w/100K miles, no issues so far. They are the same as OEM ones.Spark plug wires rarely go bad - if you have a multimeter you can take out the old wires and test the resistance, if they are still good you don't need to change them.On the E55, the wires are directly above the hot exhaust manifold so the insulation jackets tend to degrade over time (mine were still good when I pulled them out however. I'm keeping the old ones as spares)Don't forget an offset 17mm open end wrench to pull these out of your Mercedes it will be a lifesaver.