AR07.15-W-1630J | Remove/install engine control unit (MR) | 23.11.10 |
ENGINE 900.9 in MODEL 375.1, 970, 972, 975, 976
ENGINE 902.9 in MODEL 375.3, 950.5 /6, 952.5 /6, 953.6, 954.5
ENGINE 902.9 in MODEL 375.1, 970, 972, 974, 975, 976
ENGINE 924.9 in MODEL 958.0, 970, 972, 974, 975, 976
ENGINE 925.9 in MODEL 970, 972, 974
ENGINE 926.9 in MODEL 958.0
ENGINE 926.9 in MODEL 950.6 /5, 952.6 /5, 953.6, 954.5, 958.2
W07.15-1434-06
Shown on model 950 with code (BA1) Performance-optimized Voith retarder
1 Coolant pipe (feed line)
2 Electrical connector
A6 Engine control (MR) control unit
W07.15-1435-06
3 Electrical connector
4 Electrical connector
5 Banjo bolt
6 Main fuel filter
7 Damper rubber
A6 Engine control (MR) control unit
| Remove/install | ||
1 | Switch off ignition | ||
Danger! | Risk of injury caused by body parts being pinched or crushed as cab is tilted | Ensure that no one is within the tilting range of the cab as it is being tilted. Always tilt the cab all the way to the end position and secure with the safety strut. | |
2 | Tilt cab | Installation: Only tilt cab back after leak test has been conducted. | |
| Notes on tilting the cab | ||
3 | Remove coolant pipe (1) from intermediate piece to engine | Only for vehicles with code (BA1) Performance-optimized Voith or code (BA9) Voith secondary retarder R 115 | |
Danger! | Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel and risk of injury to eyes and skin caused by contact with fuel | No fire, sparks, open flames or smoking. Wear protective clothing when handling fuel. | |
4 | Remove banjo bolt (5) on main fuel filter (6) | Collect escaping fuel. | |
Installation: Replace sealing rings. | |||
| |||
5 | Remove electrical connector (2) on engine control (MR) control unit (A6) | ||
6 | Disconnect electrical connectors (3, 4) at the engine control (MR) control unit (A6) | Pull securing clamp for electrical connector (3) upwards to unlock. Swivel securing clamp for electrical connector (4) downwards to unlock. | |
7 | Remove engine control (MR) control unit (A6) with rubber dampers (7) and take out | Installation: Glue damper rubber (7) on engine control (MR) control unit (A6) with grease. | |
| |||
8 | Install in the reverse order | ||
9 | Teach in transponder key | Only if engine control (EC) (A6) control unit was replaced. | |
Danger! | Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running | Secure vehicle to prevent it from moving by itself. | |
10 | Perform engine test run, switch off engine and check for leaks in the area of the main fuel filter (6) | Crank engine with the starter for not more than 90 seconds. Wait at least for about 2 minutes before repeating attempt at starting. |
Diesel injection system with unit pumps (MR/PLD)
Number | Designation | Engine Engine | Engine 924.9, 925.9, 926.9 | ||
BA07.15-N-1002-01A | Bolt, control unit of engine control (MR) to crankcase | Nm | 15 | 15 | |
Fuel filter
Number | Designation | Engine | Engine | Engine | |
BA47.20-N-1004-02A | Banjo Bolt, fuel line to fuel filter housing | Nm | 45 | 45 | 45 |
Repair materials
Number | Designation | Order number |
BR00.45-Z-1008-06A | Silicone-based grease | A 001 989 28 51 10 |
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