Speed-sensitive power steering function fails leading to difficult steering - AF46.50-P-3600A

MODEL 171, 203, 209, 211, 215, 219, 220, 221, 230 with CODE (213) Speed-sensitive power steering 

Damage code	Cause	Remedy
46 438 73	Electrical fault in the solenoid valve for the speed-sensitive power steering (PML) and/or the electrical connection is damaged or broken off. Speed-sensitive power steering function fails. The following fault codes could be stored in the ESP control unit: C1014 Y10 (SPS [PML] solenoid valve) electrical fault C1501 Y10 (SPS [PML] solenoid valve) line break or short circuit C16EF Y10 (SPS [PML] solenoid valve) check	Before performing any repair work, please check whether the complaint about difficult steering is caused by the speed-sensitive steering function failing (fault code stored in the PML or ESP control unit) or by insufficient power steering performance (this can occur for short time periods).
		Remove steering system and replace the solenoid valve as an individual part. Replacement of the entire rack-and-pinion steering system is not required.
		1 Remove rack-and-pinion steering.
		Model 171	AR46.20-P-0600V
		Model 203 (except 203.081/084/281/284), Model 209.3/4	AR46.20-P-0600P
		Model 203.081/084/281/284	AR46.20-P-0600PW
		Model 211.004/006/206/016/216/026/ 226 /042/242/043/243/061/261/065/ 265/070 /270/076/276	AR46.20-P-0600T
		Model 215.373/374/375/376/378, 220.026/028/063/065/070/073/074/ 075 /128/165/170/173/174/175/176/178	AR46.20-P-0600I
		Model 219	AR46.20-P-0600TX
		Model 221	AR46.20-P-0600SX
		Model 230.474/475/476	AR46.20-P-0600R
		2 Remove any loose dirt from steering gear. Do not use any cleaning agents to do this.
		When performing the following work, please make sure that the work place is very clean and that work is done in a very clean manner!
		3 Remove screws (2) from the valve (1).
		4 Replace valve (1). Make sure that the sealing ring is seated properly.
		5 Install screws (2) back into the valve (1). 5 Nm
		6 Install rack-and-pinion steering.
		Model 171	AR46.20-P-0600V
		Model 203 (except 203.081/084/281/284), Model 209.3/4	AR46.20-P-0600P
		Model 203.081/084/281/284	AR46.20-P-0600PW
		Model 211.004/006/206/016/216/026/ 226 /042/242/043/243/061/261/065/265/ 070 /270/076/276	AR46.20-P-0600T
		Model 215.373/374/375/376/378, 220.026/028/063/065/070/073/074/ 075 /128/165/170/173/174/175/176/178	AR46.20-P-0600I
		Model 219	AR46.20-P-0600TX
		Model 221	AR46.20-P-0600SX
		Model 230.474/475/476 There are two versions of servo high pressure lines. The old version has a slotted support ring which can be exchanged separately. The new version has a support ring without slots. If the support ring in this version is damaged, the complete servo high pressure line must be replaced (see parts list).	AR46.20-P-0600R
		7 Check steering system for leakage.
		8 Check speed-sensitive power steering functional operation using STAR DIAGNOSIS, read out fault memory and delete if necessary.
		According to our most recent information, the toe in and toe out of the front wheels no longer have to be set after removing and installing the steering gear.
		Service Information: Omission of the complete chassis alignment after work has been done on the rack-and-pinion steering system.	SI46.20-P-0004A

Fig 1: Identifying Speed-Sensitive Steering Valve And Bolts

Part no.	Designation	Quantity
A 001 989 24 03 10	Power steering fluid "Pentosin"	1
A 005 997 76 40	Support ring to high pressure line, model 209, 211, 219, 230 On model 203, only if installed.	1
A 028 997 32 48	High/low pressure line sealing ring, Model 203 (only on high pressure lines with no supporting rings), Model 215, 220 left-hand drive vehicle, High/low pressure line on steering gear.	2
A 028 997 64 48	High/low pressure line sealing ring, Model 220 right-hand drive vehicle, High/low pressure line sealing ring on steering gear.	2
A 140 990 09 58	Nut, steering coupling M8	1
A 203 628 00 11	Tapping plate, Model 203, 209	1
A 211 460 08 84	PML valve repair set, Contains the two mounting screws for the valve. These must also be replaced.	1
N 000 000 003 281	Nut, tie rod M14x1.5	2
N 910 113 014 000	Nut, tie rod M14	2
N 913 023 012 002	Steering nut, except for Model 203, 209, For the connection from the steering gear to the cross member and/or to the mounting plate.	2
A 005 997 76 40	Support ring, Not valid for model 215/220. Support ring is also required for high pressure line connection on steering gear. For model 171 up to VIN F 117 329, model 203 up to VIN A 832 192, model 203/209 up to VIN F 740 620, model 211 up to VIN A 939 965, model 211 up to VIN X 203 560, model 219 up to VIN A 069 149, model 230 up to VIN F 118818. If the support ring is damaged on vehicles as of the above-mentioned VIN, the complete high pressure line must be replaced. The support ring can no longer be replaced separately.	1
A 015 997 22 45	Sealing ring of servo high pressure and low pressure line, Model 171/203/209/211/219//221/230. Support ring can be retrofitted on all servo high pressure lines with support ring (with and without slots) and on all servo low pressure lines.	2
A 000 000 003 276	Nut, steering to frame-type integral support, model 221	2