2015 E

*

*

*

4W21* 2014 E

*

*

*

4W21* 2015 E

*

*

*

Chassis numbers
Manufacturer Filler Type Filler MY Factory From

To

SCB

*

3W

*

*

*

020001 999999

SCB

*

ZA

*

*

*

020001 999999

Prod from Prod to

Documents
Document name
master.xml
master_702839_en-gb .doc

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Technical product information 2030217 /2

&

Page 3 of9

Connection offline

Technical product information

Transaction No.: 2030217/2

Air spring fault finding

Customer statement I workshop findings
The front and/or rear suspension appears to have dropped

Techn ical background
The Continental Series suspension system is fitted with air springs. Should air leak from the air
springs, this will cause the suspension to drop. However, the dropping of the suspension does not
necessarily mean that the air spring is faulty.
The Measure section of this TPI describes how and where to check for air leaks on the front and rear
air springs, this includes potential air leak points on the air spring and also the locations of an air leak
that can be repaired without the need to replace an air spring .
Please follow and complete the check list within the Measure section of this TPI to help in diagnosing
the issue, (The check list does not need to be sent as an attachment should a DISS ticket be raised)
should a leak be found from an air spring please raise a DISS ticket and include as much information
as possible including photograph/s of the leaks location to support your Warranty claim , once the
DISS ticket has been submitted please await clarification from your TSC before commencing with
replacing any of the suspected faulty air springs.
NOTE: Mandatory reporting is applicable for all air spring related issues.

Production change
Not applicable

Measure

lIJ
Always select Jack Mode before raising the vehicle and exhausting air from the suspension system
Refer to Workshop Manual Rep - Gr 43 Jack mode - To set
Front suspension air spring fault finding
Note: Before any other checks are made to the front air springs push check to confirm the pipes are
fully inserted home within the brass fitting
Air leakage may not be audible. A possible symptom of air leakage is excessive operation of the air
pump located above the rear diffuser. If no air leakage is apparent at the pipe unions and there is
excessive operation of the air pump located above the rear diffuser, there may be a damaged air
supply pipe to an air spring.
With the air suspension fully charged, use leak detector spray or a mild soap solution to check the
connections for leaks (Place an X in the appropriate box)
Air spring check points

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Technical product information 2030217/2

Brass fitting to the air spring

Page 4 of9

Yes

No

Comment

Yes

No

Comment

Yes

No

Comment

Yes

No

Comment

If this part is leaking Refer to
the workshop manual
Rep.Gr 43 -Air supply pipe
to repair
Top of the air spring

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Technical product information 203 0217 /2

Air spring gaiter

Top of the air spring

Page 5of9

Yes

No

Comment

Yes

No

Comment

Yes

No

Comment

Yes

No

Comment

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Technical product information 2030217 /2

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Rear suspension air spring fault finding
Note: Before any other checks are made to the rear air spring push check to confirm the pipes are
fully inserted home within the brass fitting
Which part of the rear air spring is leaking? (Place an X in the appropriate box) with the air
suspension charged use leak detector spray or a mild soap solution to determine exactly where the
air spring is leaking
Air spring check points
Brass fitting to air Spring

Air spring bellows

Yes

Yes

No

Comment

No

Comment

No

Comment

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Technical product information 2030217/2

Page 7of9

Yes

No

Comment

Yes

No

Comment

Yes

No

Comment

If this part is leaking Refer to
the workshop manual
Rep.Gr 43 -Air supply pipe
to repair
Air spring gaiter

Section 2 - Air Supply unit check points:
-Are there any air leaks on or around the air supply unit? (Figure 1)
(Place an X in the appropriate box)

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Technical product information 203 0217 /2

IComment

Figure 1
NOTE : In the event of an air leak from the air pipe/brass fittings on the supply unit the brass fittings
and internal olive can be replaced individually, please follow instructions below

The air that is released is under high pressure .
Ensure Jack mode is selected
If the car is standing on its wheels, the loss of air within the levelling system will lower the
cars standing height. Remove any obstructions.
- Unscrew the leaking brass connection from the air supply unit and remove the brass nut and olive
from the pipe and discard NOTE : to prevent dirt ingress, the air supply unit ports must be capped
when the brass connection has been removed
- Caution: The next procedure involves cutting the air pipe, check before cutting the pipe that the pipe
will refit into the air supply unit without any kinks or bends, cut no more than 5MM from the end of the
pipe
-Using Part number 3WO 616 335 unscrew one end of the union (Figure 2) ensure the white bung is
not removed from the assembly until fitted

Figure 2
-Fit and secure the brass connection into the air supply pump and remove the white bung

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-Refit the air pipe until fully home
-Recharge the air system using Offboard Diagnostic Information System - Guided Functions>Axle
Fill/Drain

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