SUS­PEN­SION CHECKS

Car Mechanics (UK) - - 2011 Jaguar XF 2.2D -

23 WIG­GLE THE WHEELS

Wig­gle each raised road wheel at the top and bot­tom and from side to side to check for play in the wheel bear­ings and up­per wish­bone bushes. Do the same to each front road wheel from left to right to check the track rod ends. Hold each rear wheel at ten-past-seven and ten-to-four and wig­gle it to check the front­most and rear­most sus­pen­sion arms.

24 BA­NANA ARM

Use a pry bar to check for ex­ces­sive play in the front bush for the front lower wish­bone (also known as the ba­nana arm due to its shape). Wear is com­mon on this arm’s large sus­pen­sion bush, which can be re­newed two or three times. A new bush is around £30, al­though new arms only cost around £85.

25 STRUT BUSHES

Use a pry bar to in­spect the con­di­tion of the front strut’s lower mount­ing bush. Ex­ces­sive play in this bush can re­sult in a squeak from the front end. The same bush can be tested on the rear struts and wear is a com­mon prob­lem, re­sult­ing in a hol­low rat­tle when driv­ing the ve­hi­cle. New bushes cost £15-£30 each.

26 REAR WISH­BONE ARMS

At the rear, use a pry bar to check the bushes for each lower and up­per wish­bone. The lower arm’s rear­most bush has a spher­i­cal bear­ing, which is known to wear and squeak. The other bushes are rub­ber and can also wear. New up­per wish­bones cost around £95 each and lower arms are priced at £120 or more.

27 TEST DROPLINKS

There are anti-roll bars at the front and rear of the XF, so in­spect the balljoints of the droplinks by wig­gling each one. Worn droplinks can re­sult in a knock­ing noise when driv­ing the XF. Also, wig­gle the anti-roll bars to en­sure their mount­ing bushes are not worn.

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