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

AP00.20-P-0054S

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

06.12.2019

Model

453

Shown on model 453.342

 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 caused by vehicle slipping or toppling off of the lifting platform.

Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.

AS00.00-Z-0010-01A

 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

Preparatory activity

1

Lift vehicle on vehicle lift



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,
Cooling system,
Heater and A/C system,
Transmission,
Heat shields,
Rear axle,
Rear axle shafts with boots.

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.

 Electric drive and power electronics,
High-voltage battery and electrical lines of high voltage system,
Engine and mounted major assemblies,
Exhaust system,
Exhaust aftertreatment,
Stationary heater,
Fuel system.

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.

Finishing activity

7

Lower vehicle with lifting platform