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2010 Mercedes Benz E 63 AMG Sedan (212.077) V8-6.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS Page 1
Vehicle: All Technical Service Bulletins
Description of the Adaptive Mixture Control as Part of Lambda Control
Description of the adaptive mixture control as part of the lambda control
The catalytic after treatment of the exhaust gas using a closed loop three way catalytic converter has proven to be a highly effective means of
meeting the current low emission limits.
Approximately 14.7 kg of air are required for complete combustion of 1 kg of gasoline. The excess air factor lambda is used to define this A/F ratio.
The engine must be operated within a very narrow range in which lambda = 1 +/- 0.005 . Such precision can only be achieved with precise closed
loop control of the A/F mixture with a lambda oxygen sensor installed upstream of the converter. A second lambda sensor downstream of the
catalytic converter increases the precision even further.
To compensate individual engine differences and long-lasting drifts in sensors and actuators of the injection system and also to compensate small not
measured air leakage, the lambda control contains an adaptive pilot control. This adaptive pilot control takes over the controller correction in two
different ranges (see Fig. x). It takes a certain time of learning in each range, until the correction is completed.
Deviations of the A/F ratio in range 1 is compensated by an additive factor and in range 2 by a multiplying factor. There are individual factors for the
right and the left banks of the engine.
Note:
In the idle speed range, the additive factor can also be affected by the multiplicative factor. For example, if the multiplicative factor (adapted in
range 2) at idle speed is too large, the additive factor (adapted in range 1) will adapt in a negative direction.
Example:
Idle adaptation of (injection time) + 0.9 ms means additional fuel needs to be added at idle speed range. Look for cause why engine is running lean.
A partial load adaptation factor of 0.885 (88.5% of regular injection time) means fuel is taken away in partial load range. Look for cause why engine
is running to rich.
2010 Mercedes Benz E 63 AMG Sedan (212.077) V8-6.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS Page 2
Repair process for fault code from adaptation of mixture formation
2010 Mercedes Benz E 63 AMG Sedan (212.077) V8-6.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS Page 3
Self adaptation of mixture formation (right/left bank) of cylinders is at minimum limit value at idle speed (P2017-[2], P2086-[2]).
2010 Mercedes Benz E 63 AMG Sedan (212.077) V8-6.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS Page 4
Self adaptation of mixture formation (right/left bank) of cylinder is at maximum limit value at part load (P2016-[1], P2085-[1]).
2010 Mercedes Benz E 63 AMG Sedan (212.077) V8-6.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS Page 5
Self adaptation of mixture formation (right/left bank) of cylinder is at minimum limit value at part load (P2016-[2], P2085-[2].
Description of test steps of failure analysis in case of a adaptation of mixture formation fault code
Step E: Check for air leaks in the air intake system.
2010 Mercedes Benz E 63 AMG Sedan (212.077) V8-6.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS Page 6
Check for proper installation of the mass air flow sensor to intake manifold. Refer to Fig. 11 and Fig. 12 as examples of improper installation.
In case of improper installation, correct the installation of the mass air flow sensor to the intake manifold (Fig. 13 and 14) and if necessary, replace
the clamp (A 112 141 03 40). Do not replace the mass air flow sensor!
2010 Mercedes Benz E 63 AMG Sedan (212.077) V8-6.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS Page 7
Step F1: Test fuel pressure and internal leaks of fuel system.
Step F2: Test delivery of component M3 (fuel pump).
Note:
Take also a fuel sample and check for water or other contaminations.
2010 Mercedes Benz E 63 AMG Sedan (212.077) V8-6.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS Page 8
Step G1: Inspect component Y62yx (Cylinder x injector) for leaks.
Step G2: Inspect operation and spray pattern of component Y62yx (Cylinder x injector).
Step H: Follow the below steps to re-adapt the adaptation values for lambda control.
2010 Mercedes Benz E 63 AMG Sedan (212.077) V8-6.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS Page 9
Step H1: Adaptive pre-control for lambda control (at part load).
Step H2: Adaptive pre-control for lambda control (at idle speed).
Note:
The path to the screens to perform the adaptive pre-control for lambda control (Fig. 19 and Fig. 20) in DAS are as follow:
^ ME-SFI 2.8 Motor electronics 2.8
^ Fault path tests performed
^ Measures for initiating the fault path tests
^ Step 6 Self adaptation of mixture formation
2010 Mercedes Benz E 63 AMG Sedan (212.077) V8-6.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS Page 1
Vehicle: All Technical Service Bulletins
Description of the Adaptive Mixture Control as Part of Lambda Control
Description of the adaptive mixture control as part of the lambda control
The catalytic after treatment of the exhaust gas using a closed loop three way catalytic converter has proven to be a highly effective means of
meeting the current low emission limits.
Approximately 14.7 kg of air are required for complete combustion of 1 kg of gasoline. The excess air factor lambda is used to define this A/F ratio.
The engine must be operated within a very narrow range in which lambda = 1 +/- 0.005 . Such precision can only be achieved with precise closed
loop control of the A/F mixture with a lambda oxygen sensor installed upstream of the converter. A second lambda sensor downstream of the
catalytic converter increases the precision even further.
To compensate individual engine differences and long-lasting drifts in sensors and actuators of the injection system and also to compensate small not
measured air leakage, the lambda control contains an adaptive pilot control. This adaptive pilot control takes over the controller correction in two
different ranges (see Fig. x). It takes a certain time of learning in each range, until the correction is completed.
Deviations of the A/F ratio in range 1 is compensated by an additive factor and in range 2 by a multiplying factor. There are individual factors for the
right and the left banks of the engine.
Note:
In the idle speed range, the additive factor can also be affected by the multiplicative factor. For example, if the multiplicative factor (adapted in
range 2) at idle speed is too large, the additive factor (adapted in range 1) will adapt in a negative direction.
Example:
Idle adaptation of (injection time) + 0.9 ms means additional fuel needs to be added at idle speed range. Look for cause why engine is running lean.
A partial load adaptation factor of 0.885 (88.5% of regular injection time) means fuel is taken away in partial load range. Look for cause why engine
is running to rich.
2010 Mercedes Benz E 63 AMG Sedan (212.077) V8-6.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS Page 2
Repair process for fault code from adaptation of mixture formation
2010 Mercedes Benz E 63 AMG Sedan (212.077) V8-6.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS Page 3
Self adaptation of mixture formation (right/left bank) of cylinders is at minimum limit value at idle speed (P2017-[2], P2086-[2]).
2010 Mercedes Benz E 63 AMG Sedan (212.077) V8-6.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS Page 4
Self adaptation of mixture formation (right/left bank) of cylinder is at maximum limit value at part load (P2016-[1], P2085-[1]).
2010 Mercedes Benz E 63 AMG Sedan (212.077) V8-6.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS Page 5
Self adaptation of mixture formation (right/left bank) of cylinder is at minimum limit value at part load (P2016-[2], P2085-[2].
Description of test steps of failure analysis in case of a adaptation of mixture formation fault code
Step E: Check for air leaks in the air intake system.
2010 Mercedes Benz E 63 AMG Sedan (212.077) V8-6.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS Page 6
Check for proper installation of the mass air flow sensor to intake manifold. Refer to Fig. 11 and Fig. 12 as examples of improper installation.
In case of improper installation, correct the installation of the mass air flow sensor to the intake manifold (Fig. 13 and 14) and if necessary, replace
the clamp (A 112 141 03 40). Do not replace the mass air flow sensor!
2010 Mercedes Benz E 63 AMG Sedan (212.077) V8-6.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS Page 7
Step F1: Test fuel pressure and internal leaks of fuel system.
Step F2: Test delivery of component M3 (fuel pump).
Note:
Take also a fuel sample and check for water or other contaminations.
2010 Mercedes Benz E 63 AMG Sedan (212.077) V8-6.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS Page 8
Step G1: Inspect component Y62yx (Cylinder x injector) for leaks.
Step G2: Inspect operation and spray pattern of component Y62yx (Cylinder x injector).
Step H: Follow the below steps to re-adapt the adaptation values for lambda control.
2010 Mercedes Benz E 63 AMG Sedan (212.077) V8-6.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS Page 9
Step H1: Adaptive pre-control for lambda control (at part load).
Step H2: Adaptive pre-control for lambda control (at idle speed).
Note:
The path to the screens to perform the adaptive pre-control for lambda control (Fig. 19 and Fig. 20) in DAS are as follow:
^ ME-SFI 2.8 Motor electronics 2.8
^ Fault path tests performed
^ Measures for initiating the fault path tests
^ Step 6 Self adaptation of mixture formation