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AUTOMATIC TRANSMISSIONS Mercedes-Benz 722 Series – Electronic Diagnosis C220, C280, C36, E300D, E320 E420, S320, S350D, S500, S600 SL320, SL500, SL600 Incorrect modulating pressure. Modulating pressure control valve or pressure relief valve is dirty or sticking. Vacuum line to transmission vacuum capsule clogged or leaking. Working pressure control valve dirty or sticking. Low working pressure. Defective primary pump. Transmission Slips When Starting Off In 1st Or 2nd (Reverse Is Okay) Band B-2 shift valve sticking. Band B-2 piston worn or damaged. Band B-2 adjusted incorrectly or worn or damaged. Adjust brake band B-2 by installing a longer thrust pin (if necessary). If transmission operates properly with selector lever in “2″, but not in “3″ or “D” position, one-way clutch may be slipping

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Manual contains in-depth maintenance, service and repair information for the Mercedes-Benz C-Class from 1994 to 2000. The aim throughout has been simplicity and clarity, with practical explanations, step-by-step procedures and accurate specifications. Whether you’re a professional or a do-it-yourself Mercedes-Benz owner, this manualhelps you understand, care for and repair your car Electrical system service, with an easy-to-use illustrated component
locator section. • Comprehensive wiring schematics, including power distribution and grounds. • Mercedes-Benz OBD II diagnostic trouble codes, SAE-defined OBD II P-codes, as well as basic scan tool operation.
• Mercedes-Benz factory tolerance, wear limits, adjustments and tightening torque

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Engine Management System Schematic 1995 Mercedes Benz E 420 (124 Chassis) V8-4196cc 4.2L DOHC (119)
Vehicle Level Powertrain Management Diagrams Electrical Diagrams Engine Combustion Component Index

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Timing Chain Replacement and Riveting Proceeding work Spark plugs removed. Refer to Powertrain Management – Ignition System – Spark Plug – Service and Repair – Procedures Replacing and riveting timing chain NOTE: Numbers in parentheses ( ) indicate a component or tool in the associated illustration.1. Remove chain tensioner. Refer to Timing Components – Timing Chain Tensioner -
Service and Repair – Procedures – Removing and Installing Chain Tensioner
See: Timing Chain Tensioner\Service and Repair

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Preparation Cylinder head (valve) covers removed.See: Valve Cover\Service and Repair Viscous fan clutch removed, refer to cooling System. Spark plugs removed. Overview Set piston of cylinder 1 to 45°before ignition TDC. Fix right cylinder head inlet, exhaust camshafts with pins, special tool 111 589 01 15 00 (01), Fig. A. Remove chain tensioner. See: Timing Chain Tensioner\Service and Repair. Remove right guide rail (2) at top, install (Fig. A). See: Timing Chain Guide\Service and Repair Lock timing chain to camshaft sprockets with wedges, special tool 110 589 03 59 00 (04) and (05), at right cylinder head (Fig. B). Cover chain housing cover with clean shop towels to prevent debris from falling into engine. Grind chain pin of timing chain (4) between inlet and exhaust camshaft sprockets open (Fig. C), Pry plate (8) of timing chain (4) off with a screwdriver (Fig. D). Push out ground-open double link. Connect new timing chain (5) to old timing chain (4) with riveted link (6) and middle plate (7) (thickness 1.6 mm) and ground open outer plate (8). Remove pins (01). Remove wedge (5) at inlet camshaft Hold timing chain meshed at inlet and exhaust camshaft sprockets by hand when performing this step. Slacken wedge (04) at exhaust camshaft sprocket slightly. Rotate crankshaft in direction of rotation of engine with wrench socket (10); hold timing chain (4) or (5) meshed at inlet and exhaust camshaft sprockets when performing this step. CAUTION: Ensure that timing chain (4) or (5) does not jump off when turned.