{"product_id":"0005003201-change-over-valve","title":"Mercedes Sprinter Coolant Change-Over Valve – AB Elektronik | VS30 Diesel | #0005003201 (2019+)","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eA failed coolant change-over valve on a VS30 Sprinter disrupts the routing of coolant between the engine and heater circuits — causing the cabin heater to underperform, the engine to take longer to reach operating temperature, or the cooling system to lose the thermal management precision the OM654 requires for efficient combustion and emissions compliance. This is the AB Elektronik coolant change-over valve for VS30 Sprinters, a direct replacement that restores proper electrically controlled coolant routing across the cooling and heating circuits.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eWhat This Part Does\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe coolant change-over valve — also called a switchover valve — is an electrically actuated valve that controls coolant flow routing between the engine cooling circuit, heater core circuit, and auxiliary circuits based on signals from the thermal management control module. On the VS30's sophisticated OM654 thermal management system, coolant routing is actively managed by the ECU to accelerate warm-up, maintain optimal combustion temperature, regulate EGR system temperatures, and deliver consistent cabin heat. Unlike a simple thermostat that opens and closes based on temperature alone, this valve responds to ECU commands to direct coolant where it's needed in real time. When the valve's actuator sticks, fails electrically, or its internal sealing surfaces degrade, coolant routing becomes fixed or erratic — causing temperature faults, heater output loss, and extended warm-up times that affect fuel economy and emissions performance.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eCommon Symptoms of a Failing Coolant Change-Over Valve\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eWeak or inconsistent cabin heater output, particularly during or after cold starts\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eEngine slow to reach operating temperature or temperature gauge that fluctuates erratically\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCooling system fault codes related to coolant temperature regulation or thermal management\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCheck engine light with fault codes tied to the coolant directional control circuit\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCoolant leak at the valve body or connection points\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eWhen to Replace\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eReplace when the valve is confirmed stuck, inoperative, or logging active fault codes through XENTRY or a compatible scan tool. Also replace when cooling system symptoms persist after the thermostat, water pump, and coolant regulation valve have been inspected and cleared as the source.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eVS30 Specific — VIN Verification Required\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThis change-over valve fits VS30 Sprinters with diesel engines. It does not fit NCV3 Sprinters (2007–2018). Coolant system configuration and valve location may vary by VIN — always verify before ordering. Contact us and we'll confirm fitment before you buy.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019+ Mercedes-Benz Sprinter 1500 – Diesel (VS30)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019+ Mercedes-Benz Sprinter 2500 – Diesel (VS30)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019+ Mercedes-Benz Sprinter 3500 – Diesel (VS30)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019+ Mercedes-Benz Sprinter 3500XD – Diesel (VS30)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-pre-wrap\"\u003e✔ Does NOT fit NCV3 Sprinters (2007–2018) ✔ Coolant system configuration may vary by VIN — always verify before ordering\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003ePart Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eMercedes OEM: 0005003201 \/ A0005003201 \/ 000-500-32-01\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eManufacturer: AB Elektronik — 4007C02\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSKU: 0005003201\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueTec Sprinter Parts","offers":[{"title":"Default Title","offer_id":46650807287982,"sku":null,"price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0657\/9077\/1374\/files\/s-l1600_dd42ef6a-c54c-434d-9f69-b969d9bc6a87.webp?v=1751920463","url":"https:\/\/bluetecsprinterparts.com\/products\/0005003201-change-over-valve","provider":"BlueTec Sprinter Parts","version":"1.0","type":"link"}