NHTSA ID Number: 10179906
Manufacturer Communication Number: LI14.20-N-071638
TSB/Document Date: 2020-09-21
Summary
Engine power output is reduced and/or engine indicator lamp lights up, various fault codes present in area of ex- haust gas recirculation (EGR system) or in charge air system
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
- MaxLife Technology prevents engine breakdown with 40% better...
- Includes seal conditioners to reduce oil consumption and oil...
- Added detergents reduce sludge, corrosion, rust and deposits...
- Advanced friction-fighting additives help maximize...
- Meets or exceeds all requirements of ILSAC GF-6A, API SP...
This product presentation was made with AAWP plugin.
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: LI14.20-N-071638
Replacement Service Bulletin Number:
MFR Communication Date: 2020-08-21
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
Engine power output is reduced 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-071638
Version
1
Function group
14.20 Exhaust gas recirculation
Date
08-21-2020
Validity
MODEL 906 with ENGINE 642
MODEL 907 with ENGINE 642
Reason for change
Model Validity Adapted
Reason for block
Complaint:
Engine power output is reduced and / or engine indicator lamp lights up, various fault codes present in area of exhaust gas recirculation (EGR system) or in charge air system.
Note:
The change in engine power putput is not known ot cause safety concerns; complaints have been no more serious
than a mild reduction in performance.
Attachments
File
Description
02.jpg
Bypass line of bypass flap
Cause:
The exhaust gas recirculation cooling solenoid valve (Y27/13) may stick 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:
•
Only replace components which do not function as designed due to sooting.
•
Cleaning the components is not permissible.
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:
08-21-2020 2:04 PM
© Copyright Mercedes-Benz
AG
BSTRINE
Page 1/5
- 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.
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 create a PTS case.
Note: The following information must be included with the PTS case:
Diagnostic data:
- Quick test
- 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: km/day, freeway/urban/start-stop etc., customer's name
Attachments
File
Description
01.jpg
Exhaust gas recirculation system (EGR), charge air system
Symptoms
Power generation / Engine management / Indicator lamp / Engine diagnosis / lit
Power generation / Engine management / Engine performance / No/poor output
Parts
Part number
ES1 ES2 Designation
Quantity Note
EPC
Refer to EPC for required replacement parts.
08-21-2020 2:04 PM
© Copyright Mercedes-Benz AG
BSTRINE
Page 2/5
WIS-References
Document number
Title
Note
Allocation
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 907
642
*
Sprinter III
642
*
Attachments
08-21-2020 2:04 PM
© Copyright Mercedes-Benz AG
BSTRINE
Page 3/5
01.jpg:
08-21-2020 2:04 PM
© Copyright Mercedes-Benz AG
BSTRINE
Page 4/5
02.jpg:
08-21-2020 2:04 PM
© Copyright Mercedes-Benz AG
BSTRINE
Page 5/5
- WHY CHOOSE THE 2025 CR MAX -Upgrade the latest diagnostic capabilities for all vehicles after 1996: upgrade to 49+maintenance services; 46 extra specific functions; real all systems/all control modules diagnose; over 40K+ bidirectional actuation tests for diagnosing all control moduels of cars; Powerful full OBD2 Functions; built-in ECU Coding for BMW
/ Audi/ VW/ RollsRoyce; Fr ee V.A.G Guide Function; Battery retistration for new battery adaptation and more. It covers all vehicle diagnostic services and some special professional vehicle maintenance servces, assists you to do home DIY vehicle maintenance or car repair as a pro technician. - NEWEST IN INNOVATION FULL OBD2 SERVICES- iCarsoft auto car diagnostic scanner compatible with CAN-FD, CR MAX can do it all-reads and clears trouble codes, ALL SYSTEM DIAGNOSIS such as engine, transmission, ABS and airbag etc. CR MAX code reader for all cars can perform I/M Readiness, Live Data, Freeze Frame, Vehicle Information, Monitor Test, On-Board Monitor, E vap System Test,O2 Sensor Test,DTC Library Lookup,etc. (Warm Tips: If you car is after 2023,please contact us for compatibility; 3. It comes with 16PIN OBD2 diagnostic adapter, please check your car diagnostic socket if it is 16pin socket, if your car is 14pin diagnostic socket please contact us for the solution.)
- 49 RESET+ 46 SERVICES- Performs: Oil Reset, EPB,SAS,Throttle, D-P - F, Battery, ABS, Injector, TPMS, Suspension, AC, Head Lamp, Body Stablity, Engine, Tramsmission, Airbag, Seat, Door-Win-Roof, Fuel Pump, Door, E-G- R.+21 NEWEST SERVICES( Need update scanner)-AdBlue, Clutch, Crankshaft, High Voltage Battery, Cruise Control, NO xSensor, Rain Sensor, Stop And Start, Turbocharger, Head Up Display, Radar Camera, Vehicle Setup, Cyliner Misfire Check,Speedlimitassist, ControlUnitReset,OxygenSensor, Seatbelt. Extra 46+ extra services based on car brand.(Tips: Quantity of reset/ calibration fucitons are based on car system that your vehicle model has)
- REVOLUTIONARY 40000+BIDIRECTIONAL ACTIVE TESTS: Upgraded CR Max scanner equip with numberous of actuational test items for covering all available vehicle control modules, no longer only do simple light test or window test like other scanners, performs hardware modules test and software control modules test for checking car units or new updated control moduels work well or not after maintenance/ repair/ re-installation/ control system updated (Example for Benz- Roller Sun Blind test; Backup Camera test ;Self-test; EPB test; Transport Mode test;Boost Pressure Positioner test; Fuel Pump test; AND MORE!!).(Warm tip: The available test items are based on control modules your car has)
- ECU CODING+ BATTERY REGISTRATION- Powerful ECU Coding service for BMW/MINI/RollsRoyce / Audi/VW/Seat/Skoda/Bentley/Bugatti/Lamborghini, Improves Engine Power Performance and Optimizes Fuel Efficiency and Match New Hardware Unit to car and Customized a comfortable Driving Modes and Fixes & Updates Original Software Bug. The battery test function for checking car battery health, perform battery reset (BMS ) for replacing a damaged or aging car battery with a new one and register new battery to car ECU
- Scanner POR V2.0 with all obd2 services
- Do the scanning for engine
- Support OBDII/EOBD Ten Modes of Operation
- 【Designed for Most Mercedes-Benz, Sprinter and Smart from 1996-2023】As every car model of Benz has its-owned specific car system and ECUs, not all models are equipped with a complete vehicle ECU, which may cause the scanner to be unable to perform all listed reset services on some models, or even completely incompatible. Like For Sprinter's newer models, it support diagnostic functions only, lacking support for specialized service functions.. So please tell us the car's VIN and required service before purchase for compatibility check. You may also refer to the instructions in the eighth image of the main product photos to perform your inquiry.
- 【Up to 38 Reset Services】MB V3.0 2026 Version diagnostic tool performs Up to 38 maintenance services - Oil Rest , SAS, EPB, ETC, D-P-F, TPMS, ABS, Suspension, Air Conditioner, Head Lamp, Body Stability, Engine Control, Seat, Fuel Pump, Air-Filter, Engine Idle, Door, Im-mo-bilizer, Injector Coding, Transmission Control, Miscellaneous, Adblue, BMS, Cluth, Water Pump, NOxSensor, Rain/Light Sensor, Start/Stop, Radar/Camera, Cylinder Shutoff Test, Speed Limit Assist, Control Unit Reset, Oxygen Sensor, Seat Belt, Cruise Control System, Turbocharger, Crankshaft, Language Setting and etc. (Tips: Please update the software after receiving the product to obtain new service functions)
- 【OE-Level All System OBD2 Scanner】iCarsoft MB V3.0 (2026 Version) diagnostic scanner offers comprehensive OBDII services, allowing you to quickly scan all systems, including the Engine, ABS, SAS, SRS, TPMS, TCM, Fuel Pump System, ESP, EPB, EPS, Suspension, SCM, Adaptive Systems, and more. It supports functions such as reading and erasing codes, checking I/M readiness, viewing freeze frame data, performing O2 sensor tests, conducting on-board monitoring, testing the evap system, auto VIN retrieval, and reading both generic and specific codes, as well as DTCs and battery tests.
- 【Bidirectional Scan Tool】iCarsoft MB V3.0 (2026 Version) Bidirectional scanner supports activate or control a vehicle system or component, allows commanding cars’ modules and receiving info from the ECU to perform active tests on individual components, including EVAP/ABS Motor Pump/Windows/Sunroof and more, to pinpoint fault causes & resolve issues,and allows you to re-learn certain components after making repairs or replacement.
- 【Real Time Record & Graph View】iCarsoft MB V3.0 (2026 Version) can automatically record vehicle text history and identify vehicle information. Preserve real-time data information. View & Graph Live Data. Support Data Review and Print. Multi-language: English, German, Dutch, Spanish, French and so on. We promise to offer Lifetime updates (Lifetime free Update via PC), and confidence in products. We also provide 1 year warranty + extra lifetime hardware free repair if you need it in the future. We prioritize user experience & strive to meet your expectations. Please do feel free to reach out to us if you have any question or problem about the usage, our tech team will service you in time.
This product presentation was made with AAWP plugin.
Last update on 2026-05-13 / Affiliate links / Images from Amazon Product Advertising API