Remove/Install Catalytic Converter - AR49.10-P-5500MNB
Engine 178 in model 190
Shown without code 598 (gasoline particulate filter (GPF) with sensor system)
| 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 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 self-locking nuts and bolts | AH00.00-P-0001-01KOA | |
| Notice | Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | |
| Remove/install | |||
| 1 | Remove center and front bottom Engine compartment lining. | Engine 178 in model 190.381 | AR61.20-P-1105RGB |
| Engine 178 in model 190 (except 190.381) | AR61.20-P-1105RG | ||
| 2 | Remove screws of the bracket from the left catalytic converter (10) at the transmission. | If installed. | |
| *BA49.10-P-1009-01AG | |||
| 3 | Remove left lambda sensors (6, 7) and right lambda sensors (4, 5). | AR07.04-P-0021MNB | |
| 4 | Remove left gasoline particulate filter differential pressure sensor and right gasoline particulate filter differential pressure sensor and place to one side with connected pressure hoses. | Engine 178 in model 190 with code 598 (Gasoline particulate filter (OPF) with sensor system) |
AR07.04-P-0025MNB |
| 5 | Remove holder (8) upwards. | *BA49.10-P-1012-01AG | |
| *BA49.10-P-1008-01AG | |||
| 6 | Secure right catalytic converter (9) and left catalytic converter (10) against falling down. | ||
| 7 | Remove clamps (3). | AR09.40-P-6018-01MNA | |
| *BA49.10-P-1010-01AG | |||
| 8 | Check design of the clamps (3) between the exhaust gas turbochargers and catalytic converters (9, 10). | If a one-piece clamp (3) is installed ↓ Replace clamp (3). |
|
| If a two-piece clamp (3) is installed ↓ Replace nuts and bolts. |
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| Fig 1 | |||
| 9 | Remove differential pressure lines from the right and left gasoline particulate filter and place to one side. | Engine 178 in model 190 with code 598 (Gasoline particulate filter (OPF) with sensor system) |
AR49.20-P-0016MNB |
| 10 | Remove drive shaft with drive shaft housing. | AR41.50-P-0011MNB | |
| 11 | Remove heat plate from bulkhead downward. | ||
| 12 | Remove right catalytic converter (9) and left catalytic converter (10) downward. | ||
| 13 | Install in the reverse order. | ||
| 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 | |
| 14 | Perform Engine test run and check leak tightness of the exhaust system. | ||
| 15 | Install the center and front lower Engine compartment paneling. | Engine 178 in model 190.381 | AR61.20-P-1105RGB |
| Engine 178 in model 190 (except 190.381) | AR61.20-P-1105RG |
EXHAUST SYSTEM
| Number | Designation | Engine 178 in model 190 | |
|---|---|---|---|
| BA49.10-P-1008-01AG | Bolt, bracket to crankcase | Nm | 20 |
EXHAUST SYSTEM
| Number | Designation | Engine 178 in model 190 | |
|---|---|---|---|
| BA49.10-P-1009-01AG | Bolt, front exhaust line to bracket | Nm | 18 |
EXHAUST SYSTEM
| Number | Designation | Engine 178 in model 190 | |
|---|---|---|---|
| BA49.10-P-1010-01AG | Clamp, front exhaust system to turbocharger | Nm | 20 |
EXHAUST SYSTEM
| Number | Designation | Engine 178 in model 190 | |
|---|---|---|---|
| BA49.10-P-1012-01AG | Screw/bolt, butterfly bracket to catalytic converter | Nm | 18 |