Check all visible parts of vehicle underside for damage and fluid loss

AP00.20-P-0054F

Check all visible parts of vehicle underside for damage and fluid loss

06.12.2019

Model

166, 292

Shown on model 166.003

30

Front center engine compartment paneling

32

Rear engine compartment paneling

31

Center engine compartment paneling

 Warning

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.

AS00.00-Z-0002-01A

 Danger

Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)

Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.

AS00.00-Z-0035-01A

Topical note

General information on handling vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system

AH00.00-Z-0300-01A

Topical note

Notes on battery

AH54.10-P-0001-01A

Notes on evaluating leakages

AH00.00-N-0011-01A



Remove

1

Remove front center engine compartment paneling (30), center engine compartment paneling (31) and the rear engine compartment paneling (32)



AR61.30-P-1001GQ



Check

2

Check visible systems, powertrain components, lines, hoses on the underfloor for damage, correct routing, leaks, correct mounting and corrosion

 Brake system,
Spring elements,
Shock absorber,
Suspension lines and sensors,
Steering,
Front axle,
Engine and mounted major assemblies,
Cooling system,
Heater and A/C system,
Transmission,
Exhaust system,
Exhaust aftertreatment,
Actuator motors of exhaust gas flaps,
Heat shields,
Rear axle,
Rear axle shafts with boots,
Rear axle differential,
Fuel system.

If a problem arises



Rectify problem subject to separate repair order.

3

Check visible systems, components, lines and hoses on the underfloor for damage, correct routing, leaks, correct mounting and corrosion

Equipment-dependent.

 Front axle shafts with boots (4MATIC),
Front axle transmission (4MATIC),
Stationary heater,
Hybrid components,
Transfer case (4MATIC).

If a problem arises



Rectify problem subject to separate repair order.

4

Check underfloor and visible components on underfloor for damage, routing, mounting and corrosion

 Wheel well trim
Underfloor paneling,
Underfloor.

If a problem arises



Rectify problem subject to separate repair order.

5

Check visible body panels for corrosion and deformation

 Wheel well body panels,
Front axle carrier,
Rear axle carrier,
Chassis steering arms,
Underfloor body panels,
Body reinforcements.

If a problem arises



proceed in accordance with the country-specific regulations for mobility and body shell complaints.

6

Check vehicle underside for evidence of driving over obstacles or damage caused by contact with the vehicle underside

If driving over obstacles or damage caused by contact with the vehicle underside is suspected



check steering for mechanical damages.

If the steering shows signs of mechanical damage.



Subject to separate repair order, replace steering for safety reasons.



Install

7

Install front center engine compartment paneling (30), center engine compartment paneling (31) and the rear engine compartment paneling (32)



AR61.30-P-1001GQ