Remove/install cooling line of power steering system - AR46.25-P-3010GR

MODEL 463.243 /244 /245 /246 /247 /248 /249 /250 /254 /270 /271 /303 /306 /309 /332 /333 /336 /340 /341 /346 

Illustrated on model 463.248 

Fig 1: Identifying Return Hose & Steering Gear Return Hose

Courtesy of MERCEDES-BENZ USA

Shown on model 463.333 

Fig 2: Identifying Cooling Line & Nut

Courtesy of MERCEDES-BENZ USA

	Removing
	Danger of injury  to eyes caused by steering oil emerging at high pressure. Danger of poisoning  caused by swallowing steering oil	Unscrew end limit screws a maximum of 5 turns. Wear safety glasses.	AS46.00-Z-0001-01A
1	Remove front grille		AR88.00-P-2115GM
2	Remove lamp unit	Remove only on left-hand side.
		Model 463.243/244/245/246/247/248/249/250/254/270/271/309/332/333	AR82.10-P-4730GR
		Model 463.303/306/336/340/341/346	AR82.10-P-4730GY
3	Remove left front fender liner
4	Suction off steering oil in steering oil reservoir	Hand pump	Figure
5	Detach return hose (1) from cooling line (2) of power steering system	Collect discharged oil in a suitable container or seal the return hose (1) and cooling line (2) with stop plugs.
			Figure
6	Detach steering gear return hose (3) from cooling line (2)	Collect discharged oil in a suitable container or seal the cooling line (2) with a stop plug.
			Figure
7	Turn steering to left and right wheel lock	Do not start the engine. Doing so will cause irreparable damage to the power steering pump. Have a second person collect the discharged oil in a suitable container. This will prevent the oil from running out of the steering gear return hose (3).
8	Remove cooling line (2)	To do so, unscrew and remove the nuts (4).
9	Drain off oil in cooling line (2)	Collect oil in suitable container.
	Install
10	Install cooling line (2) of power steering system.
11	Attach steering gear return hose (3) to cooling line (2)
12	Attach return hose (1) to cooling line (2)
13	Fill steering system.		AR46.20-P-0500-10F
			*BF46.20-P-1001-01B
14	Check power steering fluid level, correct if necessary		AP46.00-P-4611G
15	Check connections of installed hoses for leaks	Turn steering to left and right stop several times with the engine running.
16	Fit end cover	Ensure gasket is correctly installed.
17	Install lamp unit	Model 463.243/244/245/246/247/248/249/250/254/270/271/309/332/333	AR82.10-P-4730GR
		Model 463.303/306/336/340/341/346	AR82.10-P-4730GY
18	Install grille		AR88.00-P-2115GM
19	Install left front fender liner

Fig 3: Identifying Set Of Stop Plugs (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Hand Pump (210 589 00 71 00)

Courtesy of MERCEDES-BENZ USA