I am appalled at the short lifespan of OE ball joints on the 211 (both upper and lower). The manufacturer of the OE/dealer BJ's is CFW, btw. I'd recommend checking all four BJ's at every oil change on any 211 chassis. Thankfully the BJ's are not expensive, but the lower BJ is a moderate PITA to replace and requires a C-shaped press (<$100 for the Chinese kit off eBay). Late 211's have a bolt-in upper BJ which is a breeze to replace; I'm not sure what procedure is required for early 211 without the bolt-in upper BJ.
WARNING: The 211 chassis can have ball joints with dangerous amounts of play, with NO symptoms whatsoever... no squeak, no clunk, no rattle, no steering or handling issues, no instability at 130mph,
nothing. Check the lower BJ by raising the car and pushing up on the wheel/tire by hand, as shown
in this video on a 210 chassis. The upper BJ is checked by removing the wheel/tire and squeezing the joint by hand (video link below).
The video below is not quite Klink/Jono approved, but it does give you a good idea what is involved with replacing the lower BJ's and the forward suspension arm (named "strut arm" , "strut rod", "torque strut", or "radius rod" depending on which factory documentation you read in EPC/WIS). The torque strut has been updated with a new design bushing, if the car has the old/original style, it should be replaced with the new version (plus 4 new protective rubber boots, p/n 211-333-06-97, which are to be retrofitted per WIS document ar33.15-p-0160-03t when this suspension arm is replaced). See video below.
All these parts are very reasonably priced, IMO when buying a 211 if there is no record of the suspension parts being recently replaced, it's worth doing everything as preventive maintenance. Total cost for 4 BJ's, 2 torque struts, 4 torque strut rubber boots, all 4 steering tie rods, and new steering rack boots is under $500 total for Lemforder items (plus alignment).
[video=youtube;t4I3sivBCX0]https://www.youtube.com/watch?v=t4I3sivBCX0[/video]
https://www.youtube.com/watch?v=t4I3sivBCX0
[video=youtube_share;vAy6UZSmI1s]https://youtu.be/vAy6UZSmI1s[/video]
https://youtu.be/vAy6UZSmI1s
[video=youtube;cSeUqWYhzug]https://www.youtube.com/watch?v=cSeUqWYhzug[/video]
https://www.youtube.com/watch?v=cSeUqWYhzug
