Value Commitment Program (00/51A)

Publication date: 1993-05-01
Reference number: 00/51A

VALUE COMMITMENT PROGRAM

TECHNICAL SERVICE BULLETIN

Reference Number(s): 00/51A, Date of Issue: May 1993
Superceded Bulletin(s): 00/51, Date of Issue: February 1993

MODEL 140; VALUE COMMITMENT PROGRAM

Model(s): 1992 Mercedes-Benz 400 SE: 1992-93 Mercedes-Benz 300 SD, 300 SE, 500 SEL, 600 SEL: 1992-93 Mercedes-Benz 400 SEL, 500 SEC, 600 SEC

Group: 00 - Maintenance, Service, General Descriptions, Recall Campaigns

Bulletin No.: MBNA 00/51a

Date: May 1993

NOTE: This bulletin supersedes Service Information No. MBNA 00/51 dated February 1993.

ILLUSTRATIONS

Fig 1: Front Lower Control Arm Rear Bushings

Fig 2: Old Version Rear Rubber Bushing Installed

Fig 3: Current Version Rear Rubber Bushing Installed

Fig 4: Encapsulation Panel Retainer Locations

Fig 5: Eccentric Bolt & Nut Locations

Fig 6: Removing Solid Rubber Bushing

Fig 7: Removing Aluminum End Washer

Fig 8: Bushing Remover/Installer Tool

Fig 9: Hydraulic Bushing Offset Indentation

Fig 10: Installing Hydraulic Bushing

Fig 11: Measuring Wheel Bearing Play

Fig 12: Removing Vanity Mirror

Fig 13: Accessing Fold Back Drive Motor Connector

Fig 14: Fold Back Drive Motor Connector

Fig 15: Removing Exterior Mirror Assembly

Fig 16: Removing Exterior Mirror Drive Motor

Fig 17: Quality Checked Sticker

SERVICE INFORMATION

The Value Commitment Program includes model year 1992 and early model year 1993 vehicles.

Since the introduction of the model 140 line, S-Class vehicles have undergone improvements and refinements. Customers will receive letters advising them that they will be contacted by their local authorized dealer to have these improvements and enhancements installed on their cars. In addition, Regional Personnel will assist you in our commitment to make this experience as satisfying as possible for the customer. Therefore, we urge you to follow the steps outlined in the Work Instructions and the attached packet of information.

Please pay particular attention to the special parts ordering procedures, which are intended to ensure that parts will be available as needed. It is important that these procedures be followed carefully, so that we may achieve our goal of customer satisfaction.

The attached Work Instructions (no. 284a) describe the items to be inspected, the models affected, respective operation code numbers with time allowances, and a list of part numbers required.

It is important to note that the vehicles must be carefully checked to determine if current production components such as hydraulic bushings, updated control modules, vanity mirrors, and outside rear view mirror fold back mechanisms may have already been installed on a previous occasion.

Submit claims using the special damage codes listed in the attached Work Instructions.

Vehicles with mileage exceeding 50,000 are entitled to program repairs. Please contact your regional office for an authorization code.

Finally, with the vehicle in the service area, this opportunity should be used to also repair any possible problems which are not covered by the Value Commitment Program, but are covered under warranty.

ASSOCIATED WARRANTY CLAIM SUBMISSION INFORMATION

NOTE: A separate additional claim is required for reimbursement of customer satisfaction related measures.

Fig 18: ASSOCIATED WARRANTY CLAIM SUBMISSION INFORMATION

A supply of "Quality Checked" stickers will be sent to each dealer. The sticker (Fig. Fig 17 ) should be affixed to all vehicles which have undergone the Model 140 Value Commitment Program. After completing the program, the service manager should sign and place the sticker on the module box cover in the component compartment. For those vehicles that have already undergone the program prior to availability of the sticker, place the sticker in the customer file so it can be affixed during the vehicle's next visit. The sticker should save time identifying cars which have already undergone the program and provide the customer with a visual confirmation. Additional stickers can be obtained, if needed, by contacting your Regional Coordinator.

WORK INSTRUCTIONS NO. 284A

MODEL 140 VALUE COMMITMENT PROGRAM

ALL MODEL 140, REPLACEMENT OF FRONT LOWER CONTROL ARM REAR BUSHINGS WITH HYDRAULIC BUSHINGS
MODELS 140.042/051/057 (MODEL YEAR 1992 CALIFORNIA ONLY) DIAGNOSTIC MODULE, DIAGNOSTIC TROUBLE CODE 26
MODEL 140.057 (MODEL YEAR 1992) LH-SFI CONTROL MODULE, DIAGNOSTIC TROUBLE CODES 19, 51
ALL MODEL 140, REPLACEMENT OF REAR VANITY MIRRORS
ALL MODEL 140, REPLACEMENT OF EXTERIOR MIRROR FOLD BACK DRIVE MOTOR

Model(s): 1992 Mercedes-Benz 400 SE: 1992-93 Mercedes-Benz 300 SD, 300 SE, 500 SEL, 600 SEL: 1992-93 Mercedes-Benz 400 SEL, 500 SEC, 600 SEC

Group: 00

Number: 284A

Date: May 1993

A. ALL MODEL 140, REPLACEMENT OF FRONT LOWER CONTROL ARM REAR BUSHINGS WITH HYDRAULIC BUSHINGS

As of June 1992 production (model year 1993), only hydraulic bushings (B, Fig. Fig 1 ) are installed in the rear mount of the front lower control arm.

EFFECTIVE SERIAL NUMBER - PROCEDURE A

Model	As of Chassis End Number
140	A-086004

NOTE: On vehicles up through chassis end no. 08603. the solid rubber bushings (4c, Fig. Fig 2 ) with the large washer (4d) should be replaced with hydraulic bushings (Fig. Fig 3 ). Both left and right front lower control arm solid rubber rear bushings should be replaced at the same time. Before starting procedure, check if hydraulic bushing (4g, Fig. Fig 3 ) with integral washer may have already been installed, in which case no further replacement is necessary.

Only hydraulic bushings (4g, Fig. Fig 3 ) are available as replacement parts.

RETROFITTING HYDRAULIC BUSHINGS:

Raise vehicle on hoist.
Remove engine compartment lower encapsulation panels (arrows, Fig. Fig 4 ).
Remove front springs using spring compressor, special tool no. 000 589 46 31 00, and spring plates, special tool no. 140 589 07 63 00. Refer to SMS Job No. 32-200B.
CAUTION: Observe all safety precautions when working with steel coil springs. Do not use impact wrench on spring compressor tool or bushing removal/installation tool.
Remove eccentric bolts (19 and 20). Always use new nuts (19b and 20b) during reassembly. See Fig 5 .
NOTE: The eccentric bolt nuts should only be retightened when the weight of the vehicle is resting on the front wheels.
- Tightening torque: 150 N.m.
Pull the control arm free from the crossmember and hold it down with a spacer block made for this purpose (013, Fig. Fig 6 ).
Drive the aluminum end washer from the rear rubber bushing with a suitable tool (Fig. Fig 7 ).
Remove the rear solid rubber bushing with remover installer, special tool no. 140 589 11 43 00, (012. Fig. Fig 6 ).
CAUTION: Do not use an impact wrench to remove or install the hydraulic bushing.

NOTE: Use remover/installer, special tool no. 140 589 11 43 00, for removal and installation of the control arm bushings. See Fig 8 . The previous remover/installer, special tool no. 140 589 03 43 00, can still be used when equipped with update kit, special tool no. 140 589 11 43 25. See S.I. MBNA 33/5, 58/56 (July 1992) for complete information on use of this tool.
Coat hydraulic bushing with a thin layer of installation lubricant part no. 001 989 14 51. and install into control arm with the offset indentation (arrows, Figs. Fig 9 and Fig 10 ) horizontally aligned with the welding seam of the control arm, pointing toward the ball joint outside of the vehicle (A Fig. Fig 10 ).
CAUTION: Do not use an impact wrench to remove or install the hydraulic bushing.
Install the hydraulic bushing (49, Fig. Fig 10 ) into the control arm evenly, without letting it twist, to the stop on the collar in the front lower control arm. Do not use excessive force.
After installation of ,he hydraulic bushings and reinstallation of the control arms and springs, adjust the wheel bearing play to 0.01 mm (see SMS Job No. 33-0300) and then check and, if necessary, adjust the vehicle's front wheel alignment (see SMS Job No. 40-0320).

NOTE: Rechecking vehicle height and headlight aim is not required after reinstalling the original springs.

PARTS INFORMATION

Qty.	Part Name	Part Number
1	Hydraulic bushing kit, front lower control arm (set of 2)	140 333 05 15 26
4	Eccentric bolt nut	140 990 01 51

SPECIAL TOOL INFORMATION

Tool Number	Tool Name
140 589 11 43 00	Rubber Bushing Remover/Installer
140 589 03 43 00	Rubber Bushing Remover/Installer (Old Style)
140 589 11 43 25	Update Kit For Use With 140 589 03 43 00
000 589 46 31 00	Spring Compressor
140 589 07 63 00	Spring Compressor Plates
NOTE - Use either the new Special Tool Part No. 140 589 11 43 00 by itself or previous Special Tool Part No. 140 589 03 43 00 together with Update Kit Part No. 140 589 11 43 25.

Fig 19: WARRANTY INFORMATION - PROCEDURE A

B. MODEL 140.042/051/057 (MODEL YEAR 1992 CALIFORNIA ONLY) DIAGNOSTIC MODULE, DIAGNOSTIC TROUBLE CODE 26

As of May 1992 production of models 140.042/051 and September 1992 production of model 140.057, a revised diagnostic module is installed in production to avoid unjustified setting of Diagnostic Trouble Code 26 (models 140.042/051/057) and 4/36 (model 140.057).

EFFECTIVE SERIAL NUMBER - PROCEDURE B

Model	As of Chassis End Number
140.042/051	A-085552
140.057	A-106501

On vehicles manufactured prior to production phase-in, check that vehicle has the proper diagnostic module installed as listed below. If not, install the latest diagnostic module according to list below.

Fig 20: PARTS INFORMATION TABLE - PROCEDURE B

Fig 21: WARRANTY INFORMATION - PROCEDURE B

C. MODEL 140.057 (MODEL YEAR 1992) LH-SFI CONTROL MODULE, DIAGNOSTIC TROUBLE CODES 19, 51

As of June 1992, revised air cleaners and/or LH-SFI control modules have been installed in production to avoid unjustified setting of Diagnostic Trouble Codes 19 or 51.

EFFECTIVE SERIAL NUMBER - PROCEDURE C

Model	As of Chassis End Number
140.057	A-090745

On vehicles manufactured prior to production phase-in and those still equipped with LH-SFI control modules having the old part no. 012 545 63 32, use the HHT (Hand-Held Tester) to check the long-term adaption value for both LH-SFI control modules (see Hand-Held Tester Manual, Control Module Programming (Long-term Adaptation), page 23 [Editions 9/92 and 2/93]). No action is necessary on vehicles equipped with LH-SFI control modules having the part no. 014 545 19 32.

If value is 0.88 (lower part load) or higher on both LH-SFI control modules, no action is necessary. If value is below 0.88 (lower part load) on one or both, replace only the LH-SFI control module(s) with the low value. Replace with part no. 014 545 19 32.

NOTE: There can be various reasons for the long-term adaptation value being set below 0.88. Before exchanging any parts, ensure that all hose connections that feed into the intake system are installed correctly and have no leaks. It is also very important that all parts of the intake system starting at the air intake duct are installed correctly and that the fuel injection system operates to specification. All of these items have an influence on the air/fuel mixture (because they affect the air flow) and have a great influence on the setting of the long-term adaptation.

Fig 22: PARTS INFORMATION TABLE - PROCEDURE C

NOTE: Long-term adaptation values must be entered in the Dealer Text Section of the warranty claim. DO NOT RESET long-term adaptation value when replacing LH-SFI control modules. Returned modules will only be accepted by the Warranty Dept. if long-term adaptation values are indicated below 0.88 during warranty parts testing. Claims for LH-SFI control modules with long-term adaptation higher than 0.88 will be debited. Modules with reset long-term adaptation will not be accepted.

Fig 23: WARRANTY INFORMATION - PROCEDURE C

D. ALL MODEL 140, REPLACEMENT OF REAR VANITY MIRRORS

As of September 1992 production, revised rear vanity mirrors are installed.

EFFECTIVE SERIAL NUMBER - PROCEDURE C

Model	As of Chassis End Number
140	A-101970

On vehicles manufactured prior to production phase-in, the new mirror assembly should be installed. When ordering the part, please state the interior color code.

Push vanity mirror assembly forward (arrow, Fig. Fig 12 ) to compress spring clips, and disengage mirror assembly.
NOTE: Parts marked with "Ind 25" or higher on the back side of the mirror assembly are the revised version and should not be replaced.
Disconnect 2-pole connector.
Connect 2-pole connector to new mirror assembly.
Install new vanity mirror assembly into headliner recess.

PARTS INFORMATION

Qty.

Part Name

Part Number

Vanity mirror, rear

140 810 17 17 ES2 ⁽¹⁾

⁽¹⁾	When ordering the vanity mirror, please include the Interior color code.

Fig 24: WARRANTY INFORMATION - PROCEDURE D

E. ALL MODEL 140, REPLACEMENT OF EXTERIOR MIRROR FOLD BACK DRIVE MOTOR

As of May 1992 production, a revised mirror fold back drive motor is installed.

EFFECTIVE SERIAL NUMBER - PROCEDURE C

Model	As of Chassis End Number
140	A-083465

On vehicles manufactured prior to production phase-in, the new mirror drive should be installed unless the new mirror drive was already previously installed. Check the vehicle history to determine if the mirror assembly or the mirror drive motor were replaced after June 30, 1992. If so, do not continue. If these components were replaced on an earlier date or were never replaced, continue with the procedure.

Using plastic wedge, press off cover. (1, Fig. Fig 13 ) and remove insulation.
Disconnect electrical connector with green and yellow wires (arrows marked "C", Fig. Fig 13 ).
NOTE: To determine if a new mirror drive has already been installed in an earlier version mirror housing, check if pin 6 (green wire) and pin 7 (yellow wire) in the mirror drive connector (Fig. Fig 14 ) are silver colored instead of gold colored. The old version mirror drive had gold colored pins. If pins are silver colored, do not continue with disassembly. Reconnect connectors and install cover (1, Fig. Fig 13 ). If pins are gold, disconnect second electrical connector and continue with procedure.
Pivot outside mirror slightly toward rear (1, Fig. Fig 15 ) and pull off cover.
With mirror in normal position. disengage tabs using small screwdriver and pull trim panel off (2, Fig. Fig 15 ).
Pull off frame (3, Fig. Fig 15 ).
Remove screws (arrows marked "S", Fig. Fig 13 ) and remove mirror assembly.
Disengage cap (4, Fig. Fig 15 ) and remove it over the mirror housingm (5).
Disassemble electrical connector and fold mirror together.
Press off retaining clip (1, Fig. Fig 16 ) and remove shaft.
Remove screws (2, Fig. Fig 16 ).
Remove drive motor (3, Fig. Fig 16 ). Then remove screw and cover from drive motor.
Installation is in reverse order of removal.

PARTS INFORMATION

Qty.	Part Name	Part Number
1	Exterior mirror fold back drive motor - left side	140 820 05 08
1	Exterior mirror fold back drive motor - right side	140 820 06 08

Fig 25: WARRANTY INFORMATION - PROCEDURE E