{"product_id":"5wp33504-01-haldex-control-unit-volvo-awd-used-siemens","title":"5WP33504-01 Haldex Control Unit Volvo AWD  Used Siemens","description":"\u003cbody\u003e\n\n\n    \u003cmeta charset=\"UTF-8\"\u003e\n    \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n    \u003cmeta name=\"description\" content=\"Used 5WP33504-01 Haldex control unit for Volvo AWD. Original Siemens DEM module for 3rd\/4th generation Haldex, fully tested and supplied with 12-month warranty.\"\u003e\n    \u003cmeta name=\"keywords\" content=\"5WP33504-01, 5WP3350401, Haldex control unit, Volvo AWD, 3rd\/4th generation Haldex, Siemens, HAP542, 109205-01, 30783198AA, 30759356AB, 36001160, XC90 AWD, DEM module\"\u003e\n    \u003ctitle\u003e5WP33504-01 Haldex Control Unit Volvo AWD | Used Siemens OEM\u003c\/title\u003e\n    \u003cstyle\u003e\n        * { margin: 0; padding: 0; box-sizing: border-box; }\n        body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n        .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n        .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n        .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n        .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n        .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n        .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n        .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n        .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 15px; margin-bottom: 20px; }\n        .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n        .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n        .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n        .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n        .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n        .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n        .compatibility-list ul { list-style: none; padding: 0; }\n        .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n        .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n        .warning-box, .info-box, .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n        .warning-box strong, .info-box strong, .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n        .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n        .spec-row { display: contents; }\n        .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n        .spec-value { background-color: #111111; padding: 10px; border-radius: 3px; color: #ffffff; }\n        .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n        .fault-codes ul { list-style: none; padding: 0; }\n        .fault-codes li { padding: 6px 0; color: #ffffff; }\n        .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n        .btn-contact {\n            display: flex;\n            align-items: center;\n            justify-content: center;\n            min-width: 220px;\n            min-height: 52px;\n            background: #000000;\n            color: #E3FC02;\n            padding: 14px 28px;\n            text-decoration: none;\n            text-align: center;\n            white-space: nowrap;\n            line-height: 1.2;\n            border-radius: 8px;\n            font-weight: 700;\n            font-size: 16px;\n            margin: 20px auto 0;\n            width: fit-content;\n            border: 2px solid #E3FC02;\n            box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n            transition: all 0.22s ease;\n            box-sizing: border-box;\n        }\n        .btn-contact:hover { background: #E3FC02; color: #000000 !important; }\n        @media (max-width: 768px) {\n            .technical-specs { grid-template-columns: 1fr; }\n            .btn-contact { width: 100%; max-width: 320px; }\n        }\n    \u003c\/style\u003e\n\n\n    \u003cdiv class=\"container\"\u003e\n        \u003cdiv class=\"product-header\"\u003e\n            \u003ch1\u003eUsed OEM Haldex Control Unit 5WP33504-01 – Volvo AWD\u003c\/h1\u003e\n            \u003cdiv class=\"part-number\"\u003ePart Number: 5WP33504-01\u003c\/div\u003e\n            \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOriginal Siemens differential electronic module for Volvo AWD vehicles with 3rd\/4th generation Haldex coupling.\u003c\/p\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"info-section\"\u003e\n            \u003cdiv class=\"key-features\"\u003e\n                \u003cdiv class=\"feature-box\"\u003e\n                    \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n                    Haldex AWD 3rd\/4th Generation\n                \u003c\/div\u003e\n                \u003cdiv class=\"feature-box\"\u003e\n                    \u003cstrong\u003eCondition\u003c\/strong\u003e\n                    Used – Fully Tested \u0026amp; Functional\n                \u003c\/div\u003e\n                \u003cdiv class=\"feature-box\"\u003e\n                    \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n                    Siemens (Original OEM)\n                \u003c\/div\u003e\n                \u003cdiv class=\"feature-box\"\u003e\n                    \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n                    HAP542 \/ 5WP33504\n                \u003c\/div\u003e\n                \u003cdiv class=\"feature-box\"\u003e\n                    \u003cstrong\u003eSiemens \/ Volvo Ref\u003c\/strong\u003e\n                    109205-01 \/ 36001160\n                \u003c\/div\u003e\n                \u003cdiv class=\"feature-box\"\u003e\n                    \u003cstrong\u003eWarranty\u003c\/strong\u003e\n                    12 Months\n                \u003c\/div\u003e\n            \u003c\/div\u003e\n\n            \u003cdiv class=\"success-box\"\u003e\n                \u003cstrong\u003eTested \u0026amp; Verified Working Unit\u003c\/strong\u003e\n                Used original Haldex control unit, cleaned and tested before dispatch. Designed to restore rear axle engagement and proper AWD operation in compatible Volvo vehicles.\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"info-section\"\u003e\n            \u003ch2\u003eOEM Part Numbers \u0026amp; Cross-References\u003c\/h2\u003e\n            \u003cdiv class=\"oem-numbers\"\u003e\n                \u003cstrong\u003eMain OEM Part Numbers:\u003c\/strong\u003e\n                \u003cp\u003e5WP33504-01  •  5WP3350401  •  HAP542\u003c\/p\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"oem-numbers\"\u003e\n                \u003cstrong\u003eSupplier \/ Module References:\u003c\/strong\u003e\n                \u003cp\u003eSiemens 109205-01  •  30783198AA  •  30759356AB\u003c\/p\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"oem-numbers\"\u003e\n                \u003cstrong\u003eAssociated Volvo Numbers:\u003c\/strong\u003e\n                \u003cp\u003e36001160  •  30783060  •  30759758\u003c\/p\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"warning-box\"\u003e\n                \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n                Before ordering, compare the part number on your current Haldex \/ DEM module with the references listed above. If you are unsure, contact us and we will help verify compatibility.\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"info-section\"\u003e\n            \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n            \u003cdiv class=\"technical-specs\"\u003e\n                \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eHaldex AWD 3rd\/4th Generation\u003c\/div\u003e\n\u003c\/div\u003e\n                \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eDifferential Electronic Module (DEM \/ AWD ECU)\u003c\/div\u003e\n\u003c\/div\u003e\n                \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eSiemens\u003c\/div\u003e\n\u003c\/div\u003e\n                \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eHAP542 \/ 5WP33504\u003c\/div\u003e\n\u003c\/div\u003e\n                \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSiemens Ref:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e109205-01\u003c\/div\u003e\n\u003c\/div\u003e\n                \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eVolvo AWD vehicles with 3rd\/4th generation Haldex coupling\u003c\/div\u003e\n\u003c\/div\u003e\n                \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUsed – Fully Tested \u0026amp; Functional\u003c\/div\u003e\n\u003c\/div\u003e\n                \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSupport:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eOnline support in case diagnostics or fitment help is required\u003c\/div\u003e\n\u003c\/div\u003e\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"info-section\"\u003e\n            \u003ch2\u003eProduct Description\u003c\/h2\u003e\n            \u003cp\u003eThis is a used original Siemens Haldex control unit with OEM number \u003cstrong style=\"color: #E3FC02;\"\u003e5WP33504-01\u003c\/strong\u003e, designed for Volvo AWD systems using the 3rd\/4th generation Haldex coupling. The module functions as the electronic management unit of the rear differential system and controls torque transfer to the rear axle when traction is needed.\u003c\/p\u003e\n\n            \u003ch3\u003eWhat This Control Unit Does\u003c\/h3\u003e\n            \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.85;\"\u003e\n                \u003cli\u003eControls the Haldex coupling to engage rear-wheel drive when required\u003c\/li\u003e\n                \u003cli\u003eCommunicates with ABS \/ ESP and drivetrain systems\u003c\/li\u003e\n                \u003cli\u003eMonitors AWD operation and stores diagnostic trouble codes\u003c\/li\u003e\n                \u003cli\u003eManages rear differential engagement strategy in the AWD system\u003c\/li\u003e\n                \u003cli\u003eHelps restore proper AWD operation when the original ECU has failed\u003c\/li\u003e\n            \u003c\/ul\u003e\n\n            \u003cdiv class=\"info-box\"\u003e\n                \u003cstrong\u003eDirect OEM Replacement\u003c\/strong\u003e\n                This module is intended as an OEM replacement for the original control unit. After installation, a diagnostic check and fault-code clearing are recommended.\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"info-section\"\u003e\n            \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n            \u003cp\u003eCommon Volvo applications for this Haldex control unit include the models below. Always confirm the part number on your current module before purchase.\u003c\/p\u003e\n\n            \u003ch3\u003eVolvo\u003c\/h3\u003e\n            \u003cdiv class=\"compatibility-list\"\u003e\n                \u003cul\u003e\n                    \u003cli\u003eVolvo XC90 3.2 AWD (2006–2007) – engine code B6324S\u003c\/li\u003e\n                    \u003cli\u003eVolvo XC90 V8 AWD (2007) – engine code B8444S\u003c\/li\u003e\n                    \u003cli\u003eVolvo XC90 AWD (model years 2005–2008) with matching 36001160 \/ 5WP33504-01 DEM\u003c\/li\u003e\n                    \u003cli\u003eSelected Volvo AWD applications only if the original module number matches exactly\u003c\/li\u003e\n                \u003c\/ul\u003e\n            \u003c\/div\u003e\n\n            \u003cdiv class=\"warning-box\"\u003e\n                \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n                Send us your VIN number or a photo of your existing part label and we will help verify fitment before you order.\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"info-section\"\u003e\n            \u003ch2\u003eCommon Diagnostic Faults \u0026amp; Symptoms\u003c\/h2\u003e\n            \u003cp\u003eProblems with the Haldex control unit can cause the AWD system to stop working or operate intermittently. Common symptoms and diagnostic issues include:\u003c\/p\u003e\n            \u003cdiv class=\"fault-codes\"\u003e\n                \u003cul\u003e\n                    \u003cli\u003e\n\u003ccode\u003eDEM-0005\u003c\/code\u003e – Control valve internal fault\u003c\/li\u003e\n                    \u003cli\u003e\n\u003ccode\u003eNo Communication\u003c\/code\u003e – AWD control module not responding\u003c\/li\u003e\n                    \u003cli\u003e\n\u003ccode\u003eDEM-0002\u003c\/code\u003e, \u003ccode\u003eDEM-0003\u003c\/code\u003e, \u003ccode\u003eDEM-0006\u003c\/code\u003e, \u003ccode\u003eDEM-0007\u003c\/code\u003e, \u003ccode\u003eDEM-0008\u003c\/code\u003e\n\u003c\/li\u003e\n                    \u003cli\u003e\n\u003ccode\u003eCEM-1A64\u003c\/code\u003e, \u003ccode\u003eBCM-0095\u003c\/code\u003e, \u003ccode\u003eBCM-0094\u003c\/code\u003e\n\u003c\/li\u003e\n                    \u003cli\u003eAnti-Skid Service Required message on the dashboard\u003c\/li\u003e\n                    \u003cli\u003eLoss of rear-wheel drive \/ AWD not working at all\u003c\/li\u003e\n                    \u003cli\u003eVehicle scrabbling, grabbing, skipping or jumping on tight turns\u003c\/li\u003e\n                \u003c\/ul\u003e\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"info-section\"\u003e\n            \u003ch2\u003eInstallation \u0026amp; Recommended Service\u003c\/h2\u003e\n            \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n            \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n                \u003cli\u003eDisconnect the battery and safely access the rear differential Haldex module\u003c\/li\u003e\n                \u003cli\u003eRemove the old control unit and inspect the connector for corrosion or moisture\u003c\/li\u003e\n                \u003cli\u003eInstall the replacement ECU carefully and reconnect all plugs securely\u003c\/li\u003e\n                \u003cli\u003eClear stored fault codes and check communication with a suitable diagnostic tool\u003c\/li\u003e\n                \u003cli\u003eCarry out adaptation or additional diagnostic checks if required\u003c\/li\u003e\n            \u003c\/ul\u003e\n\n            \u003ch3\u003eRecommended While Replacing the Unit\u003c\/h3\u003e\n            \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n                \u003cli\u003eInspect the control valve if related faults are stored\u003c\/li\u003e\n                \u003cli\u003eRenew Haldex oil \/ service fluid\u003c\/li\u003e\n                \u003cli\u003eInspect wiring and connector condition\u003c\/li\u003e\n                \u003cli\u003eCheck for remaining AWD, ABS or anti-skid faults after fitting\u003c\/li\u003e\n            \u003c\/ul\u003e\n\n            \u003cdiv class=\"warning-box\"\u003e\n                \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n                If you need help with diagnostics, compatibility or installation, reach us via the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"61080f070e21020013124c0402144f020e0c\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"info-section\"\u003e\n            \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n            \u003ch3\u003e1. Moisture Ingress \u0026amp; Corrosion\u003c\/h3\u003e\n            \u003cp\u003eWater ingress, condensation or connector corrosion can interrupt communication and damage the internal electronics of the DEM module.\u003c\/p\u003e\n\n            \u003ch3\u003e2. Control Valve or Hydraulic Faults\u003c\/h3\u003e\n            \u003cp\u003eRelated Haldex valve faults can overload the control strategy and trigger repeated AWD or anti-skid warnings.\u003c\/p\u003e\n\n            \u003ch3\u003e3. Internal Electronic Failure\u003c\/h3\u003e\n            \u003cp\u003eAge, vibration and thermal cycling can cause internal circuit or memory problems, leading to intermittent AWD operation or complete loss of rear drive control.\u003c\/p\u003e\n\n            \u003ch3\u003e4. Wiring or Power Supply Problems\u003c\/h3\u003e\n            \u003cp\u003eDamaged wiring, weak power supply or poor connector contact can create no-communication errors and unstable module behaviour.\u003c\/p\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"info-section\"\u003e\n            \u003ch2\u003eQuality Assurance \u0026amp; Warranty\u003c\/h2\u003e\n            \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This used Haldex control unit has been tested for correct operation and is supplied with a 12-month warranty under normal operating conditions.\u003c\/p\u003e\n\n            \u003ch3\u003eWarranty Coverage Includes:\u003c\/h3\u003e\n            \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n                \u003cli\u003eInternal control unit malfunction\u003c\/li\u003e\n                \u003cli\u003eCommunication failures caused by the module itself\u003c\/li\u003e\n                \u003cli\u003eFaults related to internal memory or controller operation\u003c\/li\u003e\n            \u003c\/ul\u003e\n\n            \u003ch3\u003eWarranty Exclusions:\u003c\/h3\u003e\n            \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n                \u003cli\u003eIncorrect installation or incompatible vehicle fitment\u003c\/li\u003e\n                \u003cli\u003eExternal wiring, valve or drivetrain faults\u003c\/li\u003e\n                \u003cli\u003ePhysical damage, water damage after installation or mishandling\u003c\/li\u003e\n            \u003c\/ul\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"info-section\"\u003e\n            \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n            \u003cp\u003eOur technical team is ready to assist with compatibility checks, installation guidance and diagnostics support.\u003c\/p\u003e\n            \u003ca href=\"https:\/\/cars-ecu.com\/pages\/contact\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"info-section\"\u003e\n            \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n            \u003cul style=\"margin-left: 20px; line-height: 1.9;\"\u003e\n                \u003cli\u003ePlease verify the part number before ordering\u003c\/li\u003e\n                \u003cli\u003eWorldwide shipping is available\u003c\/li\u003e\n                \u003cli\u003eIf your country is not listed at checkout, contact us and the order can be processed manually\u003c\/li\u003e\n                \u003cli\u003eDiagnostic checks are recommended after installation\u003c\/li\u003e\n                \u003cli\u003eThis module should only be fitted where the original OEM number matches\u003c\/li\u003e\n            \u003c\/ul\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":53776297558349,"sku":null,"price":319.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/www.cars-ecu.com_5.png?v=1745839182","url":"https:\/\/ecuhaldex.com\/products\/5wp33504-01-haldex-control-unit-volvo-awd-used-siemens","provider":"Cars-Ecu","version":"1.0","type":"link"}