P14.40-2588-09
1 | SCR catalytic converter | 6 | NOx sensor | |
2 | Clamp | 7 | Differential pressure sensor pressure line | |
3 | Exhaust tailpipe | 8 | AdBlue® metering valve | |
4 | Separating point | 9 | Rubber mount | |
5 | NOx sensor | 10 | Bracket |
Danger ! | 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. | |
Danger ! | 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. | |
| Notes on self-locking nuts and bolts | ||
| Notes on avoiding damage through contamination and foreign objects | ||
| Remove/install | ||
1 | Remove lower engine compartment paneling at rear | ||
2 | Detach NOx sensors (5, 6) at SCR catalytic converter (1) | ||
3 | Unscrew union nut for temperature sensor upstream of SCR catalytic converter (1) and remove temperature sensor | ||
4 | Detach AdBlue® metering valve (8) at SCR catalytic converter (1) | ||
5 | Detach differential pressure sensor pressure line (7) downstream of diesel particulate filter | Union nut/retaining screw, pressure line to diesel particulate filter | |
6 | Detach clamp (2) | Installation: Ensure that the clamp is correctly seated. | |
Bolt, clamp to center of exhaust line/diesel particulate filter | |||
7 | Disconnect SCR catalytic converter (1) at connecting point (4) from exhaust tailpipe (3) | ||
8 | Remove screw/bolts from bracket (10) on transmission | Bolt, diesel particulate filter bracket to transmission | |
9 | Unscrew rubber suspension (9) from body and remove SCR catalytic converter (1) | Helper required. | |
Bolt, exhaust rubber mount bracket to underfloor/rear axle carrier | |||
10 | Detach rubber suspension (9) at SCR catalytic converter (1) | When replacing the SCR catalytic converter (1). | |
| Clean | ||
11 | Remove combustion and corrosion residue at separating points | ||
12 | Install in the reverse order | ||
13 | Connect diagnostic system, read out fault memory and delete if necessary | ||
| |||
Danger ! | 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 |