Shown with code 598 (gasoline particulate filter (GPF) with sensor system) on the one-piece exhaust system |
1 | Center exhaust system |
2 | Rear muffler |
3 | Catalytic converter |
T1 | Separation point |
P49.10-A055-76
P49.10-A056-79
Shown with code 598 (gasoline particulate filter (GPF) with sensor system) on the one-piece exhaust system |
1 | Center exhaust system | 5 | Bolts | 9 | Union nut | ||
1.1 | Gasoline particulate filter | 6 | Bracket | 10 | Bracket | ||
2 | Rear muffler | 7 | Screw | 11 | Bracket | ||
3 | Catalytic converter | 8 | Union nut | T1 | Separation point | ||
4 | V-band clamp |
Warning | 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 hazard area. | |
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 | ||
Note on calculation of tightening torque when using insertion or socket tools with various effective lengths | |||
| Remove/install | ||
1 | Remove center and rear sections of lower engine compartment lining. | ||
Installation: Only install center and rear lower rear engine compartment paneling again after leak test. | |||
2 | Remove left and right front underfloor paneling. | ||
Installation: Install front left and right underfloor paneling only after the leak test. | |||
3 | Remove temperature sensor upstream of the gasoline particulate filter (1.1). |
| |
4 | Remove the rear engine support. | ||
5 | Support center exhaust system (1). | ||
| 000 588 11 62 00 Major assembly mount | ||
| 000 588 10 62 00 Support plate | ||
6 | Secure rear muffler (2) against falling down. | ||
7.1 | Cut off center exhaust system (1) at the separating point (T1), take rear muffler (2) off at the brackets (11), and remove. | If a one-piece exhaust system is installed. | |
The separating point (T1) is marked. | |||
Installation: Install a new clamp. | |||
Commercially available devices/tools | |||
Clamp, front exhaust system to rear muffler | |||
Lubricant, rubber assembly 1 l | |||
7.2 | Remove rear muffler (2). | If a two-piece exhaust system is installed. | |
8 | Remove V-band clamp (4). | Installation: Install new V-band clamp (4). | |
Clamp to catalytic converter and front exhaust system | |||
9 | Remove bolts (5). | Bolt, bracket for decoupling element to body/exhaust system at front | |
10 | Remove union nuts (8, 9) and screw (7) and bind pressure lines to the side. | Engine 274.9 in model 167 | |
Seal openings with suitable stop plug. | |||
Installation: Coat thread with heat-resistant lubricating paste. | |||
Screw, bracket of pressure line to gasoline particulate filter | |||
Union nut, pressure line for differential pressure sensor to gasoline particulate filter | |||
Paste, hot lubrication 1 kg, DBL 6879.20 | |||
Record plug | |||
Box wrench bit | |||
If the pressure lines are under stress, | |||
| |||
loosen screw from the bracket (6) and tighten again. | |||
Bolt, differential pressure sensor pressure lines to holder | |||
11 | Remove center exhaust system (1) from the bracket (10). | Wet elastomer bearing with lubricant. | |
Lubricant, rubber assembly 1 l | |||
12 | Remove center exhaust system (1). | ||
| 000 588 11 62 00 Major assembly mount | ||
| 000 588 10 62 00 Support plate | ||
Helper required. | |||
Engine 274.9 in model 167 | |||
| Check | ||
13 | Check elastomer bearings of the center exhaust system (1) for wear and damage. | If there is a problem, | |
| |||
replace the corresponding elastomer bearing. | |||
| Clean | ||
14 | Remove combustion and corrosion residues from the separating point (T1) and from the separating point for the catalytic converter (3). | ||
15 | Install in the reverse order. | ||
16 | Check installation position and unobstructed movement of exhaust system. | If there is a problem, | |
| |||
Re-align the exhaust system. | |||
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. | |
17 | Perform engine test run to check exhaust system for leaks. |
000 589 70 03 00
Box wrench bit
129 589 00 91 00
Record plug
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