DTB Date: March 13, 2009

Transcription

1 DTB Date: March 13, 2009 Order No.: S-B-14.30/15f Supersedes: S-B-14.30/15e dated Nov. 11, 1008 Group: 14 Revision History Revision Date Purpose f 3/13/09 Steps 1.2 and 1.3 Revised e 11/11/08 Parts Note Added d 8/13/08 Step 1.3 Added / Parts Information Updated c 11/30/07 Applicable Models, Parts and Warranty Information Updated b 3/9/06 Warranty Information Updated a 10/4/05 Technical Content / Applicable Models Updated - 7/2/03 Initial issue SUBJECT: Model /157/172/174/175 Model /186 Model /466 Model /456/473 Model Model /052/054/056/061/064/065/076/081/084/087/092/261/264/281/284/740/764 Model /365/372/375/376/456/472/465/475/476 Model /065/070/072/076/082/083/087/090/256/265/276/282/283/287 Model /374/375/376/379 Model Model /375/376 Model /170/173/174/175/176/179/183/184 Model /186 Model /472/474/475/476/477/479 Model /165 Model /249/271 All Model Years Check Engine Light with DTC P2003, P2047, P0810 and P0814 Stored in Engine ECU If you receive customer reports in the above model vehicles of the check engine light coming on and codes P2003 (M112, M113, M275), P2047 (M271), P0810 (M272, M273), P0814 (M272, M273) are stored in the engine control module memory, please perform the below procedure. This bulletin has been created and maintained in accordance with MBUSA-SLP S423QH001, Document and Data Control, and MBUSA-SLP S424HH001, Control of Quality Records Mercedes-Benz USA, LLC. All rights reserved. Reproduction or translation in whole Mercedes-Benz Canada, Inc. or in part is not permitted without authorization from the Dealer Workshop Services publisher. Printed in U.S.A FOR-MERCedes

2 1. Air Pump Relay Valid for Models: / / /054/056/061/064/065/076/081/084/087/092/261/264/281/284// /365/372/375/376/456/465/472/475/ /065/070/072/076/082/083/087/090/256/265/276/282/283/ /374/375/376/ /170/173/174/175/176/179/183/ / /472/474/475/476/477/ /165 This condition may be caused by a malfunctioning air pump relay. When the secondary air pump relay malfunctions, the air pump may be actuated beyond the maximum permissible operating time. This overload may lead to failure of the secondary air injection pump and results in a malfunction in the secondary air injection system. Proceed as follows: Note: If diagnosis reveals a malfunctioning air injection pump, refer to step Test the secondary air injection function chain with SDS. 1.2 If the secondary air pump is determined to be defective remove/replace secondary air pump and air pump relay (refer to WIS document: AR14.30-P-7251QB). 1.3 If it is determined that only the relay is defective, replace the relay only and retest the secondary air injection function chain with SDS. 1.4 Program engine control module. 2. Check Valve for Vacuum Actuation of Air Pump Valid for Models: /157/172/174/ / /456/ /052/054/056/061/064/065/076/081/084/087/092/261/264/281/284/740/ /356/365/375/376/456/465/475/ /065/070/076/082/083/087/256/265/276/282/283/ /374/ / /170/173/174/175/183/ /474/ /249/271 This condition may be caused by a malfunctioning check valve in the vacuum line (Figure 1) to the air pump switch over valve. When the check valve malfunctions, vacuum flow to the diverter valve is restricted preventing it from opening. Proceed as follows. 2.1 Test the secondary air injection function chain with SDS. 2.2 If the air pump can be activated with SDS but the function chain test fails, the vacuum flow between the 2 S-B-14.30/15f (March 13, 2009)

3 air pump switchover valve and the diverter valve may be restricted preventing the diverter valve from opening. 2.3 Check vacuum supply (Figure 2) at the diverter valve. If vacuum is < 500mbar, change check valve. Note: Copy of the SDS short test and all tests performed must accompany returned parts. If the documentation is missing or does not support the diagnosis, the warranty claim may be debited. Figure 1 S-B-14.30/15d Figure 2 S-B-14.30/15d Note: When ordering a replacement relay order the part number of the relay being removed. The parts system will deliver the current version of the ordered part. Parts Information Qty. Part Name Part Number 1 Secondary air injection pump Refer to EPC 1 Check valve A Secondary air injection pump relay (M112, M113, M275, except AMG) (40A) A Secondary air injection pump relay (M271, M272, M273) (70A) A Secondary air injection pump relay (M113K, M275LA AMG only) A Secondary air injection pump relay (SLK320 and SLK32 AMG) A Secondary air injection pump relay (C32 AMG and G55 AMG) A Note: The following allowable labor operations should be used when submitting a warranty claim for this repair. This information has been generated on March 13, Please refer to Netstar Star TekInfo Star Time for the most current labor time allowance. In Case of Warranty Operation: Short test, perform ( ) Air pump test w/ DAS (after engine test), perform ( ) Electric air pump (emission), replace ( ) Relay module(s) secondary air injection system, replace ( ) Control unit software (after short test), install ( ) Control unit code (after short test), perform ( ) Check valve secondary air injection system, replace ( ) Continued on Page 4 Continued from Page 3 S-B-14.30/15f (March 13, 2009) 3

4 In Case of Warranty Damage Code Operation Number Time (hrs.) Model Indicator (s) Claimed for Condition 1 or 2 but not both hrs. AA, AD, BA, BE, DA, G3, G4, J2, J3, K1, K2, K3, K4, K5, L1, L2, L3, M1, M2, M5, M6, M7, M8, M9, N1, N3, N4, N5, N6, P1, P2, P3, P4, P6, P7, P8, P9, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, R1, R2, R3, R4, R5, R6, R7, S1, S2, S3, S4, S5, S6, S7, S8, SA, SB, T1, T2, T3, T4, T5, T7, T8, T9, TA, U1, U3, U4, U5, U6, U7, X1, X2, X3, Y1, Y2, Y3, W1, Z1, Z hrs. BA, BE, L1, L2, L3, S1, S2, S3, S4, S5, S6, S7, S8, AS, SB, T1, T2, T3, T4, T5, T7, T8, T9, TA, U1, U3, U4, U5, U6, U7, X1, X2, X3, Y1, Y2, Y3, Z1, Z2 0.8 hrs. Condition 1: hrs. 0.3 hrs. 0.4 hrs. 0.5 hrs. 0.6 hrs. 0.7 hrs. 0.8 hrs. 0.9 hrs. 1.0 hrs. 1.4 hrs hrs. 0.2 hrs. AA, AD, DA, G3, G4, J2, J3, K1, K2, K3, K4, K5, M1, M2, M5, M6, M7, M8, M9, N1, N3, N4, N5, N6, P1, P2, P3, P4, P6, P7, P8, P9, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, R1, R2, R3, R4, R5, R6, R7, W1 W1 T3, U5, Y2, Z2 G3, J2, M1, M2, M5, M6, M7, N1, R1, T1, T2, T4, T5, U1, U3, U4, Y1 S1, S2, S4, S5 G4, P1, P2, P4, P6, P7, P8, P9, Q2, Q4, S3, S6, X2 P3, Q5 AA, AD, BA, BE, DA, R2, R7, S7, S8, T7, T8, U6, U7, X1, X3, Z1 M9, N5 J3, M8, N4, N6, Q6, Q7, Q8, Q9, QA, R5 R3, R4, R6 AA, AD, DA, S1, S2, S3, S4, S5, S6, S7, S8, SA, SB, T1, T2, T4, T5, T7, T8, T9, TA, U1, U3, U4, U6, U7, X2, Y1, Y3 BA, BE, G3, G4, J2, J3, M1, M2, M5, M6, M7, M8, M9, N1, N4, N5, N6, P1, P2, P3, P4, P6, P7, P8, P9, Q2, Q4, Q5, Q6, Q7, Q8, Q9, QA, R1, R2, R3, R4, R5, R6, R7, T3, U5, X1, X3, Z1, Z2 Continued on Page hrs. W1 4 S-B-14.30/15f (March 13, 2009)

5 Continued from Page 4 In Case of Warranty Damage Code Operation Number Time (hrs.) Model Indicator (s) hrs. AA, AD, BA, BE, DA, G3, G4, J2, J3, M1, hrs AA, AD, BA, BE, DA, G3, G4, J2, J3, M1, OR hrs. AA, AD, DA, S1, S2, S3, S4, S5, S6, S7, S8, SA, SB, T1, T2, T4, T5, T7, T8, T9, TA, U1, U3, U4, U6, U7, X2, Y1, Y3 0.2 hrs. BA, BE, G3, G4, J2, J3, M1, M2, M5, M6, M7, M8, M9, N1, N4, N5, N6, P1, P2, P3, P4, P6, P7, P8, P9, Q2, Q4, Q5, Q6, Q7, Q8, Q9, QA, R1, R2, R3, R4, R5, R6, R7, T3, U5, X1, X3, Z1, Z2 0.3 hrs. W hrs. AA, AD, BA, BE, DA, G3, G4, J2, J3, M1, hrs AA, AD, BA, BE, DA, G3, G4, J2, J3, M1, Condition 2: F hrs. AA, AD, BA, BE, DA, G3, G4, J2, J3, K1, K2, K3, K4, K5, L1, L2, L3, M1, M2, M5, M6, M7, M8, M9, N1, N3, N4, N5, N6, P1, P2, P3, P4, P6, P7, P8, P9, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, R1, R2, R3, R4, R5, R6, R7, S1, S2, S3, S4, S5, S6, S7, S8, SA, SB, T1, T2, T3, T4, T5, T7, T8, T9, TA, U1, U3, U4, U5, U6, U7, W1, X1, X2, X3, Y1, Y2, Y3, Z1, Z2 S-B-14.30/15f (March 13, 2009) 5