AR01.40-P-8000B Remove/Install Timing Case Cover
Remove/install timing case cover
Shown On Engine 112 In Model 210:
DANGER:
- Risk of explosion from explosive gas. Risk of poisoning and caustic burns from swallowing battery electrolyte. Risk of injury through burns to skin and eyes from battery acid or when handling damaged lead-acid batteries.
- No fire, sparks, naked flames or smoking. Wear acid-resistant gloves, clothing and goggles. Pour battery electrolyte only into suitable and appropriately marked containers.
1 Disconnect ground cable of battery
2 Remove engine compartment paneling.
DANGER:
- Risk of injury to skin and eyes suffering scalding from contact with hot coolant spray. Risk of poisoning from swallowing coolant.
- Do not open cooling system unless coolant temperature is below 90 degrees C.
- Open cap slowly and release the pressure. Do not pour coolant into beverage bottles. Wear protective gloves, protective clothing and eye protection.
3 Drain coolant at radiator.
4 Remove engine trim panel or air cleaner
NOTE:
- Model 220, 230.475: Unclip cover at face end of engine.
- On model 129, 202.033/093, 170.465, 208.370/374/470, 210.074/274, 220, 230.475 the air cleaner is in integrated into the engine cover.
- Remove engine trim panel or air cleaner by lifting vertically up and off the cylinder head covers.
5 Remove viscous fan (1) Except model 220, 208.365/465, 163.174, 230
NOTE: Right-hand thread!
6 Remove stationary heater
- Model 170 with stationary heater code 228.
7 Remove fan shroud (3) or electric fan.
NOTE:
- On vehicles fitted with electric fan, first of all disconnect the connector of the electric fan.
- On model 163 unscrew bolts at bottom of fan shroud.
8 Attach guard plate for radiator/condenser.
9 Remove poly V-belt of supercharger
10 Remove poly V-belt (2)
11 Remove cylinder head covers (6)
12 Dismount coolant lines (17, 18) at coolant pump
13 Dismount coolant line (16) at thermostat housing
14 Dismount refrigerant compressor (A9)
NOTE: Place to the side with lines connected.
15 Remove generator (G2)
16 Dismount bracket (23) of automatic transmission oil lines.
- MODEL 230.
17 Remove bottom part of oil pan (9)
18 Remove top part of oil pan (22)
19 Remove tensioning device of compressor poly V-belt.
20 Remove poly V-belt tensioning device (5)
21 Remove vibration damper (4)
22 Remove chain tensioner (14)
23.1 Remove oil filter housing
23.2 Remove oil filter housing (7) with oil-water heat exchanger
24 Detach power steering pump (11) with container.
NOTE: Do not disconnect lines.
25.1 Detach guide pulley at timing case cover
25.2 Take off guide pulley (15) at coolant pump
NOTE: Except model 230.474 Take off plastic cover of guide pulley.
26 Remove compressor
27 Remove air pump (20)
28 Separate electric cable from coolant thermostat.
29 Unscrew bolts (21) of cylinder head to timing case cover on right and left.
30 Remove screws of the timing case cover
NOTE: Installation: Apply sealant to bolts (arrows), observing the bolt diagram for the timing case cover.
31 Take off timing case cover
NOTE: Installation:
- The fastening threads for the coolant pump, the belt tensioning device and the power steering pump are not cut into a new timing case cover.
- For this reason, use new self-tapping screws in combination with a new timing case cover for attaching coolant pump, belt tensioning device and power steering pump. Pay attention to the torque when tightening bolts into threads which are not tapped.
- Clean sealing surfaces, apply sealant only to specified surfaces in form of bead with height and width of 2.0 mm ± 0.5 mm. The sealing compound must be worked on within 10 minutes. The silicone bead must not be spread!
CAUTION:
- See information on application of sealant to timing case cover.
- Installation: Ensure, that no sealing compound enters into the oil ducts
- Do not damage cylinder head gasket.
- Replace seals of timing case (19).
- Replace front crankshaft radial seaing ring.
32 Install in the reverse order
DANGER:
- Risk of accident. Accidents may result if the vehicle starts off unintentionally with the engine running. Risk of injury as working around the engine during start-up or while running may result in contusions and burns.
- Secure vehicle to prevent it from moving. Wear closed and snug-fitting work clothes. Do not grasp hot or rotating parts.
33 Run engine and inspect for leaks
34 Inspect cooling system for leaks
- First of all, warm up engine to operating temperature.
35 Perform basic programming
- All except model 220: Code radio and normalize power window.
- Vehicles with stationary heater: adjust time display on stationary heater.
36.1 Read diagnostic trouble code memory and erase
- All except model 220, 230
NOTE: Stored faults which can result from cables being disconnected or from simulation during removal and installation or test work, have to be processed and erased in the fault memories after completing the work.
36.2 Read out fault memory with STAR DIAGNOSIS and erase if necessary
NOTE: Stored faults, which may be caused by installation or test operations, must be processed and erased in the fault memories after completing the work.