Hello, I have had my CLS 500 almost 2 years now and it is a joy to drive and hands down the best car I have owned. So I thought I would start a member’s thread. Soon after purchasing the car I had a major service and thorough inspection carried out by a local specialist, he gave the car a clean bill of health and the only points mentioned were that a non-genuine lower ball joint had been fitted to one side only prior to my ownership, an exhaust bracket required welding back on and a parking sensor wasn’t working. The ball joint was not causing any issues but I decided to buy 2 new genuine ball joints to fit in the future. I have finally got around to fitting them and I decided to fit new front discs and pads as the front pads looked a little low and the discs were always slightly rippled and it did bug me a bit. So with a bit of nice weather today I decided to fit the new parts! Unfortunately I have not managed to complete the job today, More parts required!!! But I reckon I have found out why the discs were rippled and prevented a possible disaster! Here’s a little write up of today’s antics! Replacing the lower ball joint on a W219. Thought it may be of help to anyone wanting to do the job at home. Remove wheel and knock out pins on caliper. - Unbolt caliper and remove, remove pads. - That doesn’t look right! Wearing on one side only by the looks of it!! - That will be the corroded and seized calipers then! Seals perished, chrome on pistions flaking off, pistons corroded and seizing. Runners for pads corroded and pads tight. - :fail SO……..A few quotes for caliper re-fub from a few companies. Looking at around £200 +VAT per caliper and a week lead time. Rang Mercedes Leeds to get a price out of curiosity and I was pleasantly surprised! With 10% discount for being in the MBOC, 2 x Calipers and 2 x New flexible hoses came in at £483 Icluding VAT. They will be here on Saturday! So nipped out to pay for those and carried on with the ball joint when I go home. Remove disc. Hang caliper out of the way. - Undo and remove speed sensor. - Undo ball joint nut and separate with scissor type ball joint separator. - Push out ball joint using special tool. This was bought on an internet auction site for less than £40. - Push in new ball joint. - Voila!!New genuine ball joint in place! Once joint in place, Nut was tightened to 50Nm plus 60 degrees as stated on WIS. - Now wait until Saturday to fit new caliper, disc and pads and do it all again on the other side! I will update in due course!