Remove/install catalytic converter (left) - AR49.10-P-5500GZP (ML350, GL450, GL550)
WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 2012 Mercedes-Benz GL550, 2012 Mercedes-Benz GL450, 2011 Mercedes-Benz ML63, 2011 Mercedes-Benz ML550, and 2011 Mercedes-Benz ML350. However, it is still accessible from the selected car via links, so may be relevant.
ENGINE 272.967 in MODEL 164.1
Left catalytic converter
ENGINE 273.923 /963 in MODEL 164.8
Left catalytic converter
Shown on model 164.1 with engine 272
| Remove/install | |||
|---|---|---|---|
| Risk of injury to skin and eyes caused by handling hot or glowing objects. | Wear safety gloves, protective clothing and safety glasses, if necessary. | AS00.00-Z-0002-01A | |
| Notes on self-locking nuts and bolts | All models | AH00.00-N-0001-01A | |
| Risk of death caused by vehicle slipping or toppling off of the lifting platform. | Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer. | AS00.00-Z-0010-01A | |
| 1 | Raise vehicle | AR00.60-P-1000GZ | |
| 2 | Remove bolts (1) and remove stiffening strut on the left (2) | *BA22.10-P-1006-03G | |
| *BA22.10-P-1008-03G | |||
| 3 | Detach left catalytic converter (7) from middle exhaust system by unscrewing bolt (3) | ||
| *BA49.10-P-1004-01W | |||
| 4 | Unclip connector of left O2 sensor upstream TWC (G3/3x1) and left O2 sensor downstream TWC (G3/5x1) from retaining clamps on transmission and disconnect | ||
| 5 | Unclip electrical lines for left O2 sensor upstream of TWC (G3/3) out of clip (4) | ||
| 6 | Support left catalytic converter (7) with transmission jack and transmission platform | ||
| Telescoping transmission jack, refer to GOTIS http://gotis.aftersales.daimlerchrysler.com Passenger car transmission platform, refer to GOTIS http://gotis.aftersales.daimlerchrysler.com |
|||
| 7 | Remove bolt (6) for catalytic converter bracket on catalytic converter | *BA49.10-P-1001-01W | |
| 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 | |
| 8 | Remove bolts (5) and left catalytic converter (7) from exhaust manifold | ||
| Replace rivet nuts in exhaust manifold | AR49.10-P-5531-01GZ | ||
| *BA49.10-P-1002-01W | |||
| Notes on disposing of catalytic converters | OS49.10-P-1000-01A | ||
| 9 | Detach O2 sensors from left catalytic converter (7) | ||
| Polyamide | *BR00.45-Z-1005-06A | ||
| 10 | Install in the reverse order | ||
| Checking | |||
| 11 | Check installation position and clearance of exhaust system | ||
| Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running | Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. |
AS00.00-Z-0005-01A | |
| 12 | Test run engine and check exhaust system for leaks |
ENGINE MOUNT, ENGINE SUPPORT (ENGINE SIDE)
| Number | Designation | Model 164 | |
|---|---|---|---|
| BA22.10-P-1006-03G | Bolt for cross strut on engine crossmember | Nm | 45 |
| BA22.10-P-1008-03G | Bolt for cross strut on body | Nm | 45 |
EXHAUST SYSTEM
| Number | Designation | Engines 272, 273 in model 164 | |
|---|---|---|---|
| BA49.10-P-1001-01W | Bolt, catalytic converter bracket to catalytic convertor | Nm | 20 |
| BA49.10-P-1002-01W | Bolt, flange connection to exhaust pipe/exhaust manifold | Nm | 20 |
| BA49.10-P-1004-01W | Bolt for center muffler flange connection on catalytic converter | Nm | 35 |
AUXILIARY REPAIR MATERIALS
| Number | Designation | Order number |
|---|---|---|
| BR00.45-Z-1005-06A | Polyamide | A 000 989 76 51 |