Remove/Install Low-Temperature Circuit Switchover Valve Mounting Support - AR09.41-P-1240XGC
Engine 177 in model 463
as of model year 2019
| 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 pressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses. | AS20.00-Z-0001-01A | |
| 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 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 | |
| Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | ||
| 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 | Drain coolant from low-temperature circuit. | AR09.41-P-6834XGC | |
| 2 | Drain off coolant. | AR20.00-P-1142XGC | |
| 3 | Remove front part of fender liner in left front fender. | AR88.10-P-1300XG | |
| 4 | Unclip electric line from mounting support (1). | ||
| 5 | Remove coolant hose (7) from left low-temperature circuit additional cooler. | AR20.20-P-7441-01RQ | |
| 6 | Unscrew nuts (2). | *BA62.30-P-1011-01J | |
| 7 | Remove screw/bolts (3). | *BA61.20-P-1002-01A | |
| 8 | Release mounting support (1). | ||
| 9 | Release and disconnect electrical connector at low-temperature circuit circulation pump 1 (M43/6). | ||
| 10 | Release and disconnect electrical connector at low-temperature circuit circulation pump 2 (M43/7). | ||
| 11 | Release and disconnect electrical connector at low-temperature circuit switchover valve (Y73/1). | ||
| 12 | Remove coolant hoses (6, 7, 8, 9) and seal openings with protective covers. | AR20.20-P-7441-01RQ | |
| Fig 1 | |||
| 13 | Remove mounting support (1) downwards. | ||
| 14 | Install in the reverse order. | ||
| 15 | Read out and delete fault memory. | ||
| AD00.00-P-2000-04B | |||
| 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; in this connection check engine for leak tightness and proper operation. | ||
| 17 | Install lower engine compartment paneling. | AR61.20-P-1105XG | |
| 18 | Install upper engine cover. | AR01.10-P-2405XGC |
LOWER ENGINE COMPARTMENT PANELING
| Number | Designation | Model 463 as of model year 2019 |
||
|---|---|---|---|---|
| BA61.20-P-1002-01A | Bolt, mounting rail in lower engine compartment lining (front) to frame | M8 | Nm | 20 |
CROSS MEMBER AND FRONT REINFORCEMENT
| Number | Designation | Model 463 up to model year 2019 | Model 463 as of model year 2019 |
||
|---|---|---|---|---|---|
| BA62.30-P-1011-01J | Nut, mounting support for coolant pump/switchover valve to lower crossmember | M6 | Nm | - | 8 |