NHTSA ID Number: 10167045
Manufacturer Communication Number: LI14.20-N-058842
TSB/Document Date: 2019-11-04
Summary
Engine may be in limp-home mode and/or engine indicator lamp lights up, various fault codes present in area of exhaust gas recirculation (EGR system) or in charge air system.
Engine may be in limp-home mode and/or engine indicator lamp lights up, various fault codes present in area of exhaust gas recirculation (EGR system) or in charge air system
Topic number
LI14.20-N-058842
Version
1
Design group
14.20 Exhaust gas recirculation
Date
04-03-2014
Validity
MODEL 906 with ENGINE 642
Reason for change
Content of cause and remedy revised.
Reason for block
Complaint:
Engine may be in limp-home mode and/or engine indicator lamp lights up, various fault codes present in area of exhaust gas recirculation (EGR system) or in charge air system.
Cause:
The exhaust gas recirculation cooling solenoid valve (Y27/13) sticks in the valve seat and fails to admit the vacuum
for the vacuum unit of the bypass flap.
This can cause sooting in the EGR or charge air tract.
Remedy:
Important:
•
Important: Only replace components which do not function correctly due to sooting.
•
In cases where the vehicle is under warranty please replace the affected parts.
•
In cases where the vehicle is no longer covered by warranty the components could be cleaned with a mild
aqueous cleaning solution.
1.
Check vacuum unit for bypass flap at EGR cooler for leaks (see 01.jpg).
Note: To do this, a vacuum of 600 mbar must be built up at the EGR cooler bypass flap vacuum unit using the
vacuum pump (W 001 589 73 21 00).
Specified values:
- The vacuum must be held for a period of 5 s and may drop by no more than max. 5 mbar.
Measurement results:
- If the results deviate from the specified values, the bypass flap vacuum unit must be replaced (see AR14.20D-7661SG).
- If the specified values are met/achieved, continue with the next step.
2.
Perform test of exhaust gas recirculation cooling solenoid valve (Y27/13) using diagnostic system.
Note: Use the diagnostic system for this.
04-03-2014 7:43 PM
© Copyright Daimler AG
DAVANDE
Page 1/3
Important: When the exhaust gas recirculation cooling solenoid valve (Y27/13) is actuated, the bypass flap vacuum unit and the linkage should move.
3.
If the linkage of the bypass flap vacuum unit does not move, replace the exhaust gas recirculation cooling solenoid valve (Y27/13).
4.
Connect diagnostic system and read out and erase fault memory (see AD00.00-D-2000-04SD).
5.
If the linkage of the bypass flap vacuum unit moves, check charge air system and exhaust gas recirculation system for leaks.
6.
If there are no leaks, please submit a PTSS case.
Note: The following information must be included with the PTSS case:
Diagnostic data:
- Quick test & Control unit log
- Fault freeze frame data
- Development data diagnosis sheet (DAS) or performance data acquisition (Xentry Diagnostics)
- Test logs: Dynamic EGR test, hot film MAF sensor, intake port shutoff (if present)
Vehicle data:
- Repair history
- Vehicle operating conditions: miles/day, freeway/urban/start-stop etc., customer's name
Attachments
File
Designation
01.jpg
Exhaust gas recirculation system (EGR), charge air system
Symptoms
Power generation / Engine management / Engine management indicator lamp / Engine diagnosis / lit
Power generation / Engine management / Engine performance / Goes into limp-home mode
Parts
Part number
ES1 ES2 Designation
Quantity Note
EPC Other
make
part
Refer to EPC for required replacement parts.
X
WIS-References
Document number
04-03-2014 7:43 PM
© Copyright Daimler AG
Title
Note
DAVANDE
Allocation
Page 2/3
AR14.20-D-7661SG
Remove/install exhaust gas
recirculation bypass flap
Remedy
AD00.00-D-2000-04SD
Connect STAR DIAGNOSIS, read out fault memory
Remedy
Validity
Vehicle
Engine
Sprinter
III
642
*
04-03-2014 7:43 PM
© Copyright Daimler AG
DAVANDE
Page 3/3
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TSB/Document ID: LI14.20-N-058842
Replacement Service Bulletin Number:
MFR Communication Date: 2014-04-03
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING
MFR Component System:
MFR Component Subsystem:
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