Oil Dipstick Guide Tube, Remove and Install (X 20 DTH) Notice: The operation, "Oil Dipstick Guide Tube, Remove and Install (X 20 DTH)" is described for a vehicle fitted with air conditioning, proceed analogously for vehicles without air conditioning.
 Remove, Disconnect Drain air conditioning - see operation "Air Conditioning, Drain" in group "D". Remove fastening bolt (arrow) and disconnect refrigerant lines (1) on condenser block connection - seal off openings. | 
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Notice: For the operation, "Radiator, Remove and Install (X 20 DTH)", the condenser is attached to the body - however, in this case it must be removed.
Remove, Disconnect Remove radiator - see operation "Radiator, Remove and Install (X 20 DTH)". Remove ribbed v-belt tensioner assembly - see operation "Ribbed V-belt Tensioner Assembly, Remove and Install". Remove engine cover from cylinder head cover. Suck hydraulic fluid out of power steering pump fluid reservoir (1) as far as possible. Release both hose clamps (2) and remove intake line as well as return line (3) from fluid reservoir of power steering pump - collect escaping hydraulic fluid and seal lines. | 
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Remove, Disconnect Detach coolant hoses (1), (2) and (3) from thermostat housing - collect escaping coolant. Unclip and remove bracket (4) for coolant hoses from fuel lines. | 
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Remove, Disconnect Remove fastening bolt (1) and disconnect refrigerant lines from compressor.
 Important! After the refrigerant lines are removed the compressor openings must be carefully closed off.
Remove, Disconnect Disconnect wiring harness plug (2) from compressor. Remove fastening bolts (arrows) and remove compressor upwards from auxiliary aggregates support. | 
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Remove, Disconnect Remove power steering pump pressure line (1) from power steering pump - collect escaping hydraulic fluid and carefully close off opening in power steering pump. Detach fastening bolt (2) for oil dipstick guide tube fastening strap from cylinder block. Remove fastening bolts (3) and carefully remove auxiliary aggregates support together with oil dipstick guide tube upwards.
Important! Because of the different versions it is absolutely necessary to install the proper oil dipstick when replacing the oil dipstick guide tube. | 
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 Install, Connect Position oil dipstick guide tube with new seal rings and fasten to cylinder block from above together with the auxiliary aggregates support - tightening torque 35 Nm / 26 lbf. ft. Insert condenser from below (at suitable point) and assemble refrigerant lines with new seal rings to condenser block connection - tightening torque 27 Nm / 20 lbf. ft. Attach oil dipstick guide tube attaching strap to cylinder block - tightening torque 8 Nm / 6 lbf. ft. Attach power steering pump pressure line to power steering pump with new gaskets - tightening torque 35 Nm / 26 lbf. ft. Mount and fasten compressor to auxiliary aggregates support from above - tightening torque 20 Nm / 15 lbf. ft. Attach wiring harness plug to compressor. Attach refrigerant lines to compressor with new seal rings - 33 Nm / 24 lbf. ft. Clip bracket for coolant hoses to fuel lines and clip in coolant hoses.
Install, Connect Attach all three coolant hoses to thermostat housing and clip into brackets. Attach intake line as well as return line to power steering pump fluid reservoir. Attach upper engine cover to cylinder head cover. Install ribbed v-belt tensioner assembly - see operation "Ribbed V-belt Tensioner Assembly, Remove and Install". Install radiator - see operation "Radiator, Remove and Install (X 20 DTH)". Charge air conditioning - see operation "Air Conditioning, Evacuate and Charge" in group "D". Charge and bleed hydraulic system - see operation "Hydraulic System, Charge and Bleed" in group "M".
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