Aftermarket Valeo Voltage Regulator M636

Specifications MFR:VALEO FEATURE 1:100% New FEATURE 2:LIN (COM) Regulator FEATURE 3:COM ID Code: 17 SPECS FOR:Valeo IR Alternators SPECS:12 Volt, B-Circuit, 14.3 Vset, LIN 1 Terminals USED ON Mercedes-Benz (2012-2015) Replaces Mercedes-Benz A0041542806, Valeo 599304, 599305 LESTER NUMBERS 11716, 20646, 20661, 20704, 21597, 23874, 24101 UNIT NUMBERS Audi, Volkswagen 03L-903-023J, 04E 903 015, 04E 903 021N, 04E 903 021NX, 04E-903-015, 04E-903-021-N, 04E-903-021-NX, 04L 903 021 C, 04L 903 021 F, 04L-903-021-C, 04L-903-021-F; Bosch 0986083910; Mercedes-Benz 014-154-14-02, 271-154-14-02, 639-150-02-50, 639-150-03-50, A014-154-14-02, A014-154-14-02-80, A271-154-14-02, A639-150-02-50, A639-150-03-50; Mitsubishi Motors 1800A029; Valeo 2622498C, TG11C036, TG11C059, TG12C026, TG12C063, TG12C113, TG12C139, TG12C211, TG12C278, TG12C280, TG12C304 Mercedes-Benz Car C250 L4 1.8L 1796cc 110cid 2012-2015 SLK250 L4 1.8L 1796cc 110cid 2012-2015 Audi - Europe Car A1 (8X1, 8XK) Eng.CXMA 1.6 TDI 85kW CXMA 2014 A1 Sportback (8XA, 8XF) Eng.CXMA 1.6 TDI 85kW CXMA 2014 A1 1.0 TFSI 60kW 82HP 2016-2018 A1 1.0 TFSI 70kW 95HP 2015-2018 A1 1.4 TFSI 92kW 125HP 2014-2018 A1 1.4 TFSI 110kW 150HP 2014-2018 Seat - Europe Car Ibiza IV 1.0 TSI 999ccm 2015-2018 Ibiza V (KJ1, KJG) 1.6 TDI 59kW 80HP 1598cc 2017 Ibiza V (KJ1, KJG) 1.6 TDI 70kW 95HP 1598cc 2017 Ibiza V (KJ1, KJG) 1.6 TDI 85kW 115HP 1598cc 2017 Leon 1.0 TSI 999ccm 2015-2016 Leon 1.2 TSI 1197ccm 2013-2015 Leon 1.4 TSI 1395ccm 2012-2016 Leon SC 1.0 TSI 999ccm 2015-2016 Leon SC 1.2 TSI 1197ccm 2013-2015 Leon SC 1.4 TSI 1395ccm 2013-2016 Leon ST 1.0 TSI 999ccm 2015-2016 Leon ST 1.2 TSI 1197ccm 2013-2015 Leon ST 1.4 TSI 1395ccm 2013-2016 Toledo IV 1.2 TSI 1197ccm 2015-2018 Toledo IV 1.4 TSI 1395ccm 2015-2018 Volkswagen - Europe Car Polo 1.0 TSI 999ccm 2014-2018 Polo 1.2 TSI 1197ccm 2014-2018 Polo 1.4 TSI 1395ccm 2014-2018 Tiguan 1.4 TSI 1395ccm 2015-2016 Touran 1.2 TSI 1197ccm 2015-2016 Touran 1.4 TSI 1395ccm 2015-2016 Mitsubishi - Europe Car Colt Mk6 1500 2005-2010 COLT VI (Z3_A, Z2_A) Eng.OM 639.939 1.5 DI-D 70kW OM 639.939 2004-2009 Smart (MMC) - Europe Car FORFOUR (454) Eng.OM 639.939 1.5 CDI (454.000) 50kW OM 639.939 2004-2006 FORFOUR (454) Eng.OM 639.939 1.5 CDI (454.001) 70kW OM 639.939 2004-2006 Smart ForFour 1500 2004-2010 Features & Benefits Precision aftermarket replacement part Regulates alternator output voltage Helps maintain proper battery charging Supports stable charging system performance Manufactured to match original specifications Designed for dependable long-term operation Ideal for alternator rebuilding and repair Cross-referenced to OEM and aftermarket part numbers     What Does a Voltage Regulator Do? The voltage regulator controls the alternator's output by regulating current supplied to the rotor field winding. As electrical demand changes, the regulator continuously adjusts field current to maintain the proper charging voltage for the battery and the vehicle's electrical system. A properly functioning voltage regulator helps prevent battery overcharging and undercharging while protecting sensitive electrical components from excessive voltage. Because charging system performance depends on the interaction between the regulator, rotor, stator, rectifier, and battery, replacing a faulty regulator is an important step in restoring alternator performance.     Common Signs Replacement Is Needed Replace the voltage regulator if you notice: Battery overcharging Battery not charging Low charging voltage High charging voltage Battery warning light illuminated Intermittent charging problems Headlights that brighten or dim with engine speed Charging system failure during testing Voltage regulator failure discovered during alternator rebuilding     Installation Recommendations Installation should be performed by a qualified technician or experienced alternator rebuilder. Before installing the new regulator, inspect the brushes, brush holder, slip rings, rotor, stator, rectifier, wiring, and electrical connections for signs of wear or damage. Always verify connector configuration and mounting style before installation. After assembly, bench-test the alternator to confirm proper charging voltage and overall charging system performance.     While You're Rebuilding Inspect other common wear components to help maximize charging system reliability: Bearings Brushes Brush Holder Slip Rings Rectifier Diodes Rotor Clutch Pulley Insulators     Why Buy From RC Auto Electric? RC Auto Electric specializes in alternator and starter rebuilding components for professional rebuilders, repair shops, automotive technicians, and DIY enthusiasts. Our extensive catalog includes thousands of OEM and aftermarket electrical components backed by accurate cross-reference information to help simplify part identification and reduce ordering mistakes.     Disclaimer Compatibility information is provided as a reference only. Manufacturing revisions, production changes, and previous rebuilding modifications may affect internal alternator components. Always compare the original part, connector configuration, mounting style, voltage specifications, cross-reference numbers, and product photographs before installation. If you are unsure about compatibility, contact RC Auto Electric before ordering. Features & Benefits Precision aftermarket replacement part Regulates alternator output voltage Helps maintain proper battery charging Supports stable charging system performance Manufactured to match original specifications Designed for dependable long-term operation Ideal for alternator rebuilding and repair Cross-referenced to OEM and aftermarket part numbers What Does a Voltage Regulator Do? The voltage regulator controls the alternator's output by regulating current supplied to the rotor field winding. As electrical demand changes, the regulator continuously adjusts field current to maintain the proper charging voltage for the battery and the vehicle's electrical system. A properly functioning voltage regulator helps prevent battery overcharging and undercharging while protecting sensitive electrical components from excessive voltage. Because charging system performance depends on the interaction between the regulator, rotor, stator, rectifier, and battery, replacing a faulty regulator is an important step in restoring alternator performance. Common Signs Replacement Is Needed Replace the voltage regulator if you notice: Battery overcharging Battery not charging Low charging voltage High charging voltage Battery warning light illuminated Intermittent charging problems Headlights that brighten or dim with engine speed Charging system failure during testing Voltage regulator failure discovered during alternator rebuilding Installation Recommendations Installation should be performed by a qualified technician or experienced alternator rebuilder. Before installing the new regulator, inspect the brushes, brush holder, slip rings, rotor, stator, rectifier, wiring, and electrical connections for signs of wear or damage. Always verify connector configuration and mounting style before installation. After assembly, bench-test the alternator to confirm proper charging voltage and overall charging system performance. While You're Rebuilding Inspect other common wear components to help maximize charging system reliability: Bearings Brushes Brush Holder Slip Rings Rectifier Diodes Rotor Clutch Pulley Insulators Why Buy From RC Auto Electric? RC Auto Electric specializes in alternator and starter rebuilding components for professional rebuilders, repair shops, automotive technicians, and DIY enthusiasts. Our extensive catalog includes thousands of OEM and aftermarket electrical components backed by accurate cross-reference information to help simplify part identification and reduce ordering mistakes. Disclaimer Compatibility information is provided as a reference only. Manufacturing revisions, production changes, and previous rebuilding modifications may affect internal alternator components. Always compare the original part, connector configuration, mounting style, voltage specifications, cross-reference numbers, and product photographs before installation. If you are unsure about compatibility, contact RC Auto Electric before ordering.