SP18-35B_English Service Bulletin/Repair Instructions

SP18-35B
Special Bulletin
Revision: B
Date
Expiration
Release
Page
11.2018
11.2020
3
1(11)
Recasting of procedure
03/22/2019
P20EE (diagnostic troubleshooting code) SOLUTION - NOX CONVERSION EFFICIENCY

Prevost vehicles B13R (9700 us/can)

DESCRIPTION

For the vehicles on which a notification for SP18-35 exists, perform the following checklist and operations. It

has been determined that these vehicles had the code (DTC) P20EE activated.

DO NOT perform this special bulletin on a specific vehicle unless a notification exists, otherwise, no

reimbursement will be awarded.

MODEL YEAR(S) AND VEHICLES INVOLVED

NOTICE TO SERVICE CENTERS

Verify vehicle eligibility by checking warranty bulletin status with SAP or via ONLINE WARRANTY SYSTEM

available on Service / Warranty tab of Prevost website.
H3-41, H3-45 coaches

Model Year : 2017 - 2019
GHG17 or OBD18 compliant vehicles
H3-45 VIP motorhomes
From 2PCH33494HC713735 up to 2PCH33492KC710467 (not incl.)
Model Year : 2017 - 2019

X3-45 coaches
GHG17 or OBD18 compliant vehicles
Model Year : 2017 - 2019
From 4RKG33491H9737417 up to 4RKG33490K9737576 (not incl.)
X3-45 coaches

Model Year : 2017 - 2019

X3-45 VIP commercial use
GHG17 or OBD18 compliant vehicles
Model Year : 2017 - 2019
From 2PCCS3495HC736180 up to 2PCCS3498KC736407 (not incl.)
X3-45 VIP motorhomes

Model Year : 2017 - 2019

VOLVO 9700

Model Year : 2017 - 2019
Writer: EL
GHG17 or OBD18 compliant vehicles

From 3CET2V927H5184392 up to 3CET2V926K5194709 incl.
SP18-35B
Special Bulletin

MATERIAL
Date
Expiration
Release
Page
11.2018
11.2020
3
2(11)
Part required

Part No.
Description
Qty
22677399
GASKET, DEF INJECTION NOZZLE
1
21376801
SEALING PLATE
1
22677399
21376801
NOTE

Material can be obtained through regular channels.
Other parts that may be required

Part No.
Description
Qty
22303390
NOx SENSOR, PRE
1
22303391
NOx SENSOR, POST
1
Writer: EL
SP18-35B
Special Bulletin

Date
Expiration
Release
Page
11.2018
11.2020
3
3(11)
DANGER

Park vehicle safely, apply parking brake, stop the engine. Prior to working on the vehicle, set the

ignition switch to the OFF position and trip the main circuit breakers equipped with a trip button. On

Commuter type vehicles, set the battery master switch (master cut-out) to the OFF position.
IMPORTANT NOTES

DO NOT perform WB18-04 or WB18-84 EMS & ACM SOFTWARE UPDATE before the

following checklist, otherwise useful diagnostic codes and monitor data could be erased.

Wb18-04 for Prevost coaches, Wb18-84 for Volvo 9700
Any troubleshooting labor of active DTCs (Diagnostic Troubleshooting Codes) other than

P20EE is considered as a separate operation of the RO (repair order) and cannot be charged

to this special bulletin.
Writer: EL
SP18-35B
Special Bulletin

Date
Expiration
Release
Page
11.2018
11.2020
3
4(11)
PART 1

Vehicle identification

H3

X3

9700





V.I.N (short) : __ ̶ __ __ __ __
OPERATIONS TO BE PERFORMED IN ADVANCE BY THE SERVICE ADVISOR

Ask the customer whether he/she noticed an abnormal consumption of oil or coolant.

Search all relevant information concerning the aftertreatment system or severe turbo failure in the history of

repairs of the vehicle and record. Attach to the repair order.

Also check if SP18-35 has already been performed on that particular coach. If this is the case, do not perform

SP18-35 once again, contact the Technical Publications for instructions. You can send a message to the

Technical Publications functional mailbox: technicalpublications_prev@volvo.com

NOTE/RESULTS:
Writer: EL
SP18-35B
Special Bulletin

Date
Expiration
Release
Page
11.2018
11.2020
3
5(11)
#
checklist
1
Connect PTT and check the diagnostic codes related to EMS and ACM. Take a screen capture of

the DTCs and attach to the repair order.
INITIALS

& DATE
Confirm that code P20EE is present (whether active or inactive). If P20EE is not present, do not

continue with this checklist.

Is the code P20EE present? YES 
NO
NOTE/RESULTS:

2
Take a screen capture of the last five SCR efficiency evaluations (Test screen 2589‐08‐03‐05),

attach to the repair order.

Are the last five SCR efficiency values below 80%? YES
NO
NOTE/RESULTS:

3
Check if there are leaks at the Charge Air Cooler (soapy water test). Check if there are leaks of

EGR, exhaust gas (between turbo and SCR converter). Note any presence of soot. Any repair is

considered as a separate operation of the RO (repair order) and cannot be charged to this special

bulletin.

Note: Try to clear exhaust clamps while keeping in mind the state of the insulating blankets

to avoid damages because the heat can make them fragile over time.

Leaks were found? YES
NO
NOTE/RESULTS:

4
Remove DEF doser and perform all dosing amount tests (Test screen 2589-08-03-05) and record

the results below.

Expected values: small dosing = 49 - 60 ml

large dosing = 196 - 240 ml

Dosing amount: small________ ml
large _________ ml
Are the results from the DEF dosing amount tests normal? YES
NO
NOTE/RESULTS:
Writer: EL
SP18-35B
Special Bulletin

5
Date

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