Remove/Install Engine Management Control Unit (MCM) - AR07.08-P-7013SC
Engine 176 in model 223
| 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. | AS00.00-Z-0002-01A | |
| Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant. | Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the overpressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses. |
AS20.00-Z-0001-01A | |
| 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. Deburr repair panels. |
AS00.00-Z-0017-01A | |
| Notice | Notes on coolant | AH20.00-P-2080-01KOA | |
| Notice | Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | |
| Notice | Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | |
| Notes on safety-relevant components | AH00.00-Z-0019-01A | ||
| Remove/install | |||
| 1 | Perform commissioning of engine management control unit (N3/10). | When replacing engine management control unit (N3/10). | |
| AD00.00-P-2000-06FR | |||
| 2 | Switch off ignition and store transmitter key outside of transmitter range (min. 2 m). | ||
| 3 | Remove fan unit. | AR20.40-P-5050SC | |
| 4 | Attach radiator guard plate. | ||
| WF58.50-P-0110-04A | |||
| 5 | Remove coolant hose (1) from the lower coolant expansion reservoir of the low-temperature circuit, place to one side and collect escaping coolant using suitable means. | AR20.20-P-7441-01RQ | |
| 6 | Release and disconnect electrical connectors (2). | ||
| 7 | Remove screws (3). | *BA15.18-P-1004-01G | |
| 8 | Unscrew screw (4). | *BA15.18-P-1009-01G | |
| 9 | Lower steering gear. | AR46.20-P-0500S | |
| 10 | Remove coolant hoses from coolant connections (5) at engine management control unit (N3/10) and collect escaping coolant with suitable means. | AR20.20-P-7441-01RQ | |
| 11 | Pull engine management control unit (N3/10) toward front out of bracket and remove upwards. | Lubricant, rubber assembly 1 L |
*BR00.45-Z-1010-06A |
| Check | |||
| 12 | Check elastomer bearings for damage. | If there is a problem, ↓ replace respective elastomer bearing. |
|
| 13 | Remove brackets at engine management control unit (N3/10). | When replacing engine management control unit (N3/10). |
*BA00.10-P-1002-03A |
| *BA00.10-P-1001-03A | |||
| 14 | Install in the reverse order. | ||
| Concluding tasks | |||
| 15 | Connect diagnostic system, read out fault memory and clear if necessary. | Where engine management control unit will be reused (N3/10). | |
| AD00.00-P-2000-06FR | |||
| Risk of burn injuries , suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust. | Wear protective clothing and safety glasses. Use the extraction system. Move people out of the danger zone. | AS49.00-Z-0001-01A | |
| Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running. | Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. | AS00.00-Z-0005-01A | |
| 16 | Perform engine test run. While doing so, check engine for proper operation and leak tightness. |
METRIC SCREWS/BOLTS AND NUTS AS PER MBN 10 142
| Number | Designation | 8.8 | 10.9 | |
|---|---|---|---|---|
| BA00.10-P-1001-03A | M5x0.8 | Nm | 5 | 7 |
METRIC SCREWS/BOLTS AND NUTS AS PER MBN 10 142
| Number | Designation | 8.8 | 10.9 | |
|---|---|---|---|---|
| BA00.10-P-1002-03A | M6x1 | Nm | 8 | 12 |
ENGINE WIRING HARNESS
| Number | Designation | Engine 176 | |
|---|---|---|---|
| BA15.18-P-1004-01G | Bolt, engine wiring harness to ME-SFI [ME] control unit | Nm | 9 |
ENGINE WIRING HARNESS
| Number | Designation | Engine 176 | ||
|---|---|---|---|---|
| BA15.18-P-1009-01G | Screw, ME-SFI control unit to crankcase holder | M6 | Nm | 8 |
REPAIR MATERIALS
| Number | Designation | Order number |
|---|---|---|
| BR00.45-Z-1010-06A | Lubricant, rubber assembly 1 L | A 000 989 03 67 |