Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2013 Mercedes Benz G63FACTORY OEM SERVICE PROCEDURE
Remove/install heated O2 sensor - AR07.52-P-5303GW
ENGINES 157 in MODEL 463
| Remove/install | |||
| 1 | Switch off ignition | ||
| 2 | Lift/jack up vehicle | AR00.60-P-1000G | |
| Remove LH oxygen sensors (G3/3, G3/5) | |||
| 3 | Unclip electrical connections (G3/3x1, G3/5x1) for oxygen sensors (G3/3, G3/5) from bracket on transmission and expose electrical lines | ||
| 4 | Remove oxygen sensor (G3/3, G3/5) from catalytic converter (1) | ||
| *BA14.00-P-1004-01A | |||
| *BA14.00-P-1005-01A | |||
| Fig 2 | |||
| Paste | *BR00.45-Z-1005-06A | ||
| Remove RH oxygen sensors (G3/4, G3/6) | |||
| 5 | Unclip electrical connections (G3/4x1, G3/6x1) for oxygen sensors (G3/4, G3/6) from bracket on transmission and expose electrical lines | ||
| 6 | Remove oxygen sensors (G3/4, G3/6) from catalytic converter (2) | ||
| *BA14.00-P-1004-01A | |||
| *BA14.00-P-1005-01A | |||
| Fig 2 | |||
| Paste | *BR00.45-Z-1005-06A | ||
| 7 | Install in the reverse order | ||
| 8 | Read out fault memory with STAR DIAGNOSIS and erase if necessary | AD00.00-P-2000-04A | |
| 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 | |
| 9 | Test run engine and check exhaust system for leaks |
O2 SENSOR
| Number | Designation | Engines 157, 278 | |
|---|---|---|---|
| BA14.00-P-1004-01A | Diagnostic sensor downstream of catalytic converter | Nm | 50 |
| BA14.00-P-1005-01A | Control sensor upstream of catalytic converter | Nm | 50 |
REPAIR MATERIALS
| Number | Designation | Order number |
|---|---|---|
| BR00.45-Z-1005-06A | Paste, hot lubrication 1 kg, DB supply specification 6879.20 | A 000 989 76 51 |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.