5 | Clip |
6 | Center exhaust system |
7 | SCR catalytic converter |
8 | Bolts |
9 | Elastomer bearing |
10 | Clip |
11 | Elastomer bearing |
P49.10-3174-05
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. | |
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. | |
Topical note | Notes on avoiding damage through contamination and foreign objects | ||
Topical note | Notes on self-locking nuts and bolts | ||
| Remove/install | ||
1 | Remove center and rear section of lower engine compartment paneling | ||
Warning | Risk of burn injuries and scalding when working at AdBlue lines and the components attached to them. Risk of injury to skin and eyes when handling AdBlue. Risk of poisoning caused by swallowing AdBlue | Pour AdBlue into suitable containers only. Wait until the pressure is released before starting any work on the exhaust aftertreatment system. | |
2 | Open clamp and detach AdBlue® metering valve at center exhaust system (6) | Engine 626 in model 205 | |
Notes on use, material properties and handling of AdBlue® | |||
Installation: Install a new seal and clamp. | |||
Bolt, AdBlue® metering valve clamp to exhaust system | |||
3 | Detach SCR catalytic converter temperature sensor on center exhaust system (6) |
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4 | Detach NOx sensor downstream of SCR catalytic converter |
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5 | Open clamp (5) | Installation: Replace the clamp (5). | |
Clamp, front exhaust system to catalytic converter | |||
6 | Remove screws/bolts (8) | Bolt/nut, front exhaust system to bracket | |
7 | Detach center exhaust system (6) on elastomer bearing (11) and secure against falling down | ||
8 | Open clamp (10) | Installation: Replace clamp (10). | |
Clamp, rear exhaust system to front exhaust system | |||
9 | Pull out center exhaust system (6) to the front and remove | Aid of helper required. | |
| Check | ||
10 | Check elastomer bearing (9) for damage | Bolt/nut, front exhaust system to bracket | |
If a problem arises | |||
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Replace elastomer bearing (9). | |||
11 | Check elastomer bearing (11) for damage | If a problem arises | |
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replace elastomer bearing (11). | |||
12 | Remove combustion and corrosion residue at connecting points | ||
13 | Install in the reverse order | ||
Warning | 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. | |
14 | Carry out an engine test run and check exhaust system for leaktightness |