Remove/Install Rear Axle Spring - AR32.20-P-0232MFA

Model 177, 247

with code U54 (Compound-link axle)

except code U55 (Multi-link axle)

Courtesy of MERCEDES-BENZ USA

Fig 1: Rear Axle Spring Components Location - Model 247 With Code U54, Except Code U55

Courtesy of MERCEDES-BENZ USA

	Risk of injury caused by pinching or crushing when working on springs or spring bodies that are under tension	Use only approved tensioning devices; additionally screen off hazardous area if necessary. Check special tools for damage and proper operation (visual inspection). Wear protective gloves.	AS00.00-Z-0001-01A
Notice	Notes on self-locking nuts and bolts		AH00.00-P-0001-01KOA
	Notes on repair work on suspension components		AH00.00-P-0100-01A
	Remove
1	Remove rear underfloor paneling (2).		AR61.30-P-1001MFA
2	Unclip expansion rivets (3).	Dismantling tool	Fig 2
3	Press retaining lugs (4) and remove trim (5).
4	Detach level sensor from torsion-beam axle.	Model 177, 247 with code 631 (Static LED headlamps, left-hand traffic) with code U54 (Compound-link axle) except code U55 (Multi-link axle) Model 177, 247 with code 632 (Headlamps, LED, static, right-side traffic) with code U54 (Compound-link axle) except code U55 (Multi-link axle) Model 177, 247 with code 640 (SAE dynamic LED headlamps right-hand traffic) with code U54 (Compound-link axle) except code U55 (Multi-link axle) Model 177, 247 with code 641 (Dynamic LED headlamps, left-hand traffic) with code U54 (Compound-link axle) except code U55 (Multi-link axle) Model 177, 247 with code 642 (Dynamic LED headlamps, right-hand traffic) with code U54 (Compound-link axle) except code U55 (Multi-link axle)	AR82.10-P-0005MFA
5	Insert upper clamping plate (01), lower clamping plate (02) and adapters (03) into spring (1) and fit spring compressor (04).	Ensure correct seating of the clamping plates (01, 02), adapter (03) and spring compressor (04). Otherwise correct seating of the spring (1) is not guaranteed.
		Adapter	Fig 5
		Clamping plates	Fig 3
		Tensioning device	Fig 4
6	Compress left and right springs (1) with spring compressor (04).	Adapter	Fig 5
		Clamping plates	Fig 3
		Tensioning device	Fig 4
7	Remove screw/bolts (6).		AR32.25-P-0110MFA
8	Swing torsion-beam axle (7) downwards.	The spring (1), which is not removed, remains on the torsion-beam axle (7).
9	Release spring compressor (04) and remove spring (1).	Adapter	Fig 5
		Clamping plates	Fig 3
		Tensioning device	Fig 4
	Check
10	Check spring (1) for damage and corrosion.	If the spring (1) is reused. Only repair paint damage using a black touch-up paint pen. Otherwise it could lead to confusion with the color marking of the rear spring (1). If the spring (1) exhibits damage and severe corrosion, ↓ Replace spring (1).
11	Check upper and lower spring retainers (8) for damage.	If the spring retainer (8) is reused. If there is damage. ↓ Replace spring retainer (8).
	Install
12	Position spring (1) in lower and upper spring retainers (8).
13	Insert spring (1) and spring retainers (8) into mounts (9).	Ensure correct seating of the spring (1) and spring retainers (8) in the mounts (9). Otherwise correct seating of the spring (1) is not guaranteed.
		Adapter	Fig 5
		Clamping plates	Fig 3
		Tensioning device	Fig 4
14	Compress spring (1) with spring compressor (04) and swing torsion-beam axle (7) upwards	Swing far enough upwards until the screws (6) can be screwed in. The spring (1) must be installed so that the single color dot points downwards.
		Adapter	Fig 5
		Clamping plates	Fig 3
		Tensioning device	Fig 4
15	Counterhold nut on screw (6) and tighten.	Remove/install rear shock absorber	AR32.25-P-0110MFA
16	Release spring compressor (04) at both ends and remove.	Adapter	Fig 5
		Clamping plates	Fig 3
		Tensioning device	Fig 4
17	Remove clamping plates (01, 02) and adapters (03).	Adapter	Fig 5
		Clamping plates	Fig 3
18	Install level sensor of torsion-beam axle.	Model 177, 247 with code 631 (Static LED headlamps, left-hand traffic) with code U54 (Compound-link axle) except code U55 (Multi-link axle) Model 177, 247 with code 632 (Headlamps, LED, static, right-side traffic) with code U54 (Compound-link axle) except code U55 (Multi-link axle) Model 177, 247 with code 640 (SAE dynamic LED headlamps right-hand traffic) with code U54 (Compound-link axle) except code U55 (Multi-link axle) Model 177, 247 with code 641 (Dynamic LED headlamps, left-hand traffic) with code U54 (Compound-link axle) except code U55 (Multi-link axle) Model 177, 247 with code 642 (Dynamic LED headlamps, right-hand traffic) with code U54 (Compound-link axle) except code U55 (Multi-link axle)	AR82.10-P-0005MFA
19	Install trim (5).
20	Install rear underfloor paneling (2).		AR61.30-P-1001MFA
	Check
21	Check headlamp adjustment and correct if necessary.
		Model 247 with code U54 (Compound-link axle) except code U55 (Multi-link axle)	AP82.10-P-8260AO
		Model 177 with code U54 (Compound-link axle) except code U55 (Multi-link axle)	AP82.10-P-8260N