P15.40-2729-09
Shown on model 177 with engine 260 without code M016 (performance-enhanced engine) |
1 | Engine air intake duct upstream of air filter | 7 | Heat shield | 12 | Nut | ||
2 | Charge air hose | 8 | Bolts | 13 | Coolant hose | ||
3 | Refrigerant line | 9 | Cap | 14 | Nut | ||
4 | Engine air intake duct downstream of air filter | 10 | Electrical wiring harness | 15 | Screw | ||
5 | Poly-V-belt | 11 | Electrical connector | G2 | Alternator | ||
6 | Bolts |
Caution | Risk of injury caused by scraping or cutting body parts on sharp vehicle parts | Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. | |
Danger | Risk of fire/risk of explosion due to short circuit and escaping oxyhydrogen gas. Risk of (burn) injury caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte/mist, short circuit and arcing. Risk of poisoning caused by swallowing battery electrolyte or absorption of lead through the skin or body orifices. Risk of death due to voltage U >= 30 V AC and U >= 60 V DC. | No fires, sparks, open flames, or smoking. Wear acid-resistant gloves, clothing, and glasses. Pour battery acid only into suitable and appropriately marked containers. | |
Warning | Risk of poisoning caused by inhaling overheated refrigerant vapors from an air conditioning system containing R134a. Risk of injury to skin and eyes caused by contact with liquid R134a refrigerant and when working on pressurized parts | Never perform welding work on or near a closed air conditioning system. No smoking or open flames. Wear safety glasses and protective gloves. Work only in well ventilated rooms. Carry out repair work on the air conditioning system circuit only after the system has been evacuated. | |
Danger | Risk of explosion caused by welding or soldering work on closed air conditioning system. Risk of poisoning caused by inhaling overheated refrigerant vapors. Risk of injury to skin and eyes caused by contact with liquid refrigerant. | Never perform welding work on or near a closed air conditioning system. No smoking or open flames. Wear safety glasses and protective gloves. Work only in well ventilated areas. Carry out repair work on the air conditioning system circuit only after the system has been drained. | |
Danger | Risk of fire due to ignition of R1234yf refrigerant on hot components. Risk of poisoning caused by inhaling overheated refrigerant vapors. Risk of injury to skin and eyes caused by contact with escaped R1234yf refrigerant and when working on pressurized parts. Risk of explosion due to formation of ignitable refrigerant/air mixtures | Never perform welding work on or near a closed air conditioning system. No smoking or open flames. Wear safety glasses and protective gloves. Work only in well ventilated rooms. Carry out repair work on the air conditioning system circuit only after the system has been evacuated. | |
Warning | Risk of injury. Skin or eye injuries may result when handling hot or glowing objects. | Wear protective gloves, protective clothing and safety glasses, if necessary. | |
Topical note | Notes on coolant | ||
Topical note | Information on preventing damage to electronic components due to electrostatic discharge | ||
Topical note | Notes on avoiding damage through contamination and foreign objects | ||
Notes on safety-relevant components | |||
Notes on handling refrigerant R1234yf | |||
| Remove/install | ||
1 | Disconnect ground line from the starter battery (G1). | ||
2 | Discharge air conditioning system. | ||
3 | Remove engine air intake duct upstream of air filter (1). | ||
4 | Remove engine air intake duct downstream of air filter (4). | ||
5 | Remove right charge air hose (2). | Engine 260 in model 118, 177, 247 | |
Open and close coupling | |||
6 | Remove fan unit. | ||
7 | Insert cooler protective plate. | ||
| |||
8 | Remove screws (8) and remove side heat shield (7) at exhaust gas turbocharger. | Bolt, heat shield to exhaust gas turbocharger | |
9 | Unscrew nut (14), remove refrigerant line (3) and seal exposed openings with suitable stop plugs. | Nut, refrigerant line connecting point | |
Record plug | |||
10 | Drain off coolant. | ||
11 | Remove the poly-V-belt(5). | ||
12 | Remove coolant hose (13) at water pump and cooler, place to one side and seal. | Hose clamp pliers | |
13 | Remove screw (15) at refrigerant compressor. | Bolt, refrigerant line to refrigerant compressor | |
14 | Remove refrigerant line (3) and seal exposed openings with suitable stop plugs. | Installation: Replace seals. | |
Record plug | |||
15 | Release and disconnect electrical connector (11) at alternator (G2). | ||
16 | Remove cover (9) from circuit 30 at alternator (G2). | ||
17 | Unscrew nut (12) from circuit 30 at alternator (G2) and place electrical wiring harness (10) to one side. | Nut, circuit B+ to alternator | |
18 | Remove screws (6) at alternator (G2). | Tighten alternator screws/bolts | |
Installation: Observe tightening procedure. | |||
Screw, alternator to timing case/major assembly carrier | |||
19 | Carefully remove alternator (G2) upwards. | ||
20 | Install in the reverse order. |
454 589 00 37 00
Hose clamp pliers
129 589 00 91 00
Record plug
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