RADIADOR DE MOTOR

<style> .qf-block { font-family: Arial, sans-serif; font-size: 14px; line-height: 1.6; color: #222222; } .qf-block .b-section { border: 1px solid #e0e0e0; border-top: none; } .qf-block .b-section:first-of-type { border-top: 1px solid #e0e0e0; } .qf-block .b-header { display: flex; align-items: center; justify-content: space-between; padding: 12px 20px; background: #1e2025; cursor: pointer; user-select: none; } .qf-block .b-title { font-size: 12px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #ffffff; } .qf-block .b-chevron { font-size: 10px; color: #aaaaaa; font-family: monospace; transition: transform 0.2s; } .qf-block .b-chevron.open { transform: rotate(180deg); } .qf-block .b-body { display: none; padding: 20px; background: #ffffff; } .qf-block .b-body.open { display: block; } .qf-block .prose p { margin-bottom: 12px; color: #444444; font-size: 14px; } .qf-block .prose p:last-child { margin-bottom: 0; } .qf-block .symptom-list { list-style: none; display: flex; flex-direction: column; gap: 5px; margin-top: 12px; padding: 0; } .qf-block .symptom-list li { padding: 8px 12px; background: #f7f7f7; border-left: 3px solid #c0392b; font-size: 13px; color: #444444; } .qf-block .obd-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 8px; margin-top: 14px; } .qf-block .obd-item { border: 1px solid #e0e0e0; background: #f9f9f9; padding: 10px 14px; } .qf-block .obd-code { font-size: 14px; font-weight: 700; color: #c0392b; letter-spacing: 0.03em; } .qf-block .obd-desc { font-size: 12px; color: #888888; margin-top: 3px; } .qf-block .qf-table { width: 100%; border-collapse: collapse; font-size: 14px; } .qf-block .qf-table th { text-align: left; padding: 8px 12px; border-bottom: 2px solid #e0e0e0; font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: #444444; font-weight: 700; background: #f5f5f5; } .qf-block .qf-table td { padding: 8px 12px; border-bottom: 1px solid #f0f0f0; vertical-align: top; } .qf-block .qf-table tr:last-child td { border-bottom: none; } .qf-block .qf-table tr:nth-child(even) td { background: #fafafa; } .qf-block .logistics-table { width: 100%; border-collapse: collapse; font-size: 14px; } .qf-block .logistics-table td { padding: 9px 14px; border-bottom: 1px solid #e0e0e0; vertical-align: top; } .qf-block .logistics-table tr:last-child td { border-bottom: none; } .qf-block .logistics-table td:first-child { color: #666666; font-size: 13px; font-weight: 600; width: 40%; } .qf-block .logistics-table td:last-child { color: #222222; } .qf-block .step-num { width: 32px; vertical-align: top; font-size: 18px; color: #c0392b; font-weight: 700; padding: 10px 12px; white-space: nowrap; } .qf-block .step-text { padding: 10px 12px; color: #444444; border-left: 1px solid #f0f0f0; } .qf-block .faq-item { padding: 14px 16px; border-bottom: 1px solid #f0f0f0; } .qf-block .faq-item:last-child { border-bottom: none; } .qf-block .faq-item.alt { background: #fafafa; } .qf-block .faq-q { font-weight: 700; color: #222222; margin-bottom: 5px; font-size: 14px; } .qf-block .faq-a { color: #555555; font-size: 13px; line-height: 1.6; } .qf-block .note { font-size: 12px; color: #888888; margin-bottom: 12px; } </style> <div class="qf-block"> <!-- BLOCK 1: OVERVIEW --> <div class="b-section"> <div class="b-header" onclick="qfToggle('overview')"> <div class="b-title">Overview &amp; Operating Principle</div> <div class="b-chevron open" id="qf-chevron-overview">&#9650;</div> </div> <div class="b-body open" id="qf-body-overview"> <div class="prose"> <p>The <strong>1K0959455CQ</strong> is an engine cooling fan assembly with an integrated Fan Control Module (FCM). It serves as the primary radiator cooling fan on PQ35-platform Volkswagen and Audi Group vehicles. Unlike earlier designs with a separate relay, this assembly combines the fan motor and its electronic controller into a single unit mounted directly to the fan shroud.</p> <p>The FCM receives PWM (pulse-width modulation) signals from the ECU and steplessly adjusts fan speed in proportion to engine coolant temperature, A/C refrigerant pressure, and ambient conditions. This allows precise thermal management across a wide range of operating conditions &#8212; from slow creep at low speed to full-speed cooling at high coolant temperatures or maximum A/C load. The integrated design also means that if the control module fails, the entire fan assembly must be replaced as a unit.</p> </div> </div> </div> <!-- BLOCK 2: SYMPTOMS & DIAGNOSTICS --> <div class="b-section"> <div class="b-header" onclick="qfToggle('symptoms')"> <div class="b-title">Symptoms &amp; Diagnostics</div> <div class="b-chevron open" id="qf-chevron-symptoms">&#9650;</div> </div> <div class="b-body open" id="qf-body-symptoms"> <div class="prose"> <p>The FCM is a known wear item on MK5/MK6 VW and PQ35 Audi platforms. Failure typically presents in one of three progressive stages:</p> </div> <ul class="symptom-list"> <li>Fan not activating when A/C is switched on &#8212; warm air at idle despite compressor running</li> <li>Fan running only at full speed (no variable control) &#8212; loud constant noise at all engine temps</li> <li>Engine overheating at idle or in slow traffic &#8212; temperature gauge rising above normal range</li> <li>Fan continuing to run for extended periods after engine shutdown</li> <li>A/C compressor cutting out to protect the system due to insufficient condenser cooling</li> </ul> <div class="obd-grid"> <div class="obd-item"> <div class="obd-code">P1946 / 18354</div> <div class="obd-desc">Coolant Fan Control Module &#8212; Faulty / Open Circuit in Voltage Supply</div> </div> <div class="obd-item"> <div class="obd-code">P0480</div> <div class="obd-desc">Cooling Fan 1 Control Circuit Malfunction</div> </div> <div class="obd-item"> <div class="obd-code">P0481</div> <div class="obd-desc">Cooling Fan 2 Control Circuit Malfunction</div> </div> <div class="obd-item"> <div class="obd-code">P0483</div> <div class="obd-desc">Cooling Fan Rationality Check Failure</div> </div> <div class="obd-item"> <div class="obd-code">00588 / P1380</div> <div class="obd-desc">Radiator Fan &#8212; Implausible Signal</div> </div> </div> <p style="margin-top:14px; font-size:12px; color:#888888;">VAG-specific codes can be read with VCDS (VAG-COM) or OBD-II scanner with extended manufacturer codes.</p> </div> </div> <!-- BLOCK 3: LOGISTICS & CUSTOMS --> <div class="b-section"> <div class="b-header" onclick="qfToggle('logistics')"> <div class="b-title">Logistics &amp; Customs</div> <div class="b-chevron open" id="qf-chevron-logistics">&#9650;</div> </div> <div class="b-body open" id="qf-body-logistics"> <table class="logistics-table"> <tr> <td>Net Weight</td> <td>2.2 kg</td> </tr> <tr> <td>Minimal Order</td> <td>20 pcs</td> </tr> <tr> <td>Production Time</td> <td>30&#8211;45 days</td> </tr> <tr> <td>Country of Origin</td> <td>Made in China, Brand: VAG/PORSCHE OEM ref.</td> </tr> </table> </div> </div> <!-- BLOCK 4: VEHICLE COMPATIBILITY --> <div class="b-section"> <div class="b-header" onclick="qfToggle('compat')"> <div class="b-title">Vehicle Compatibility</div> <div class="b-chevron open" id="qf-chevron-compat">&#9650;</div> </div> <div class="b-body open" id="qf-body-compat"> <p class="note">Based exclusively on OEM part numbers in the Application table on this page. Always verify by OEM number before ordering.</p> <table class="qf-table"> <thead> <tr> <th>Brand</th> <th>Model</th> <th>Years</th> <th>Key OEM Ref.</th> </tr> </thead> <tbody> <tr> <td style="font-weight:600;">VW</td> <td>Golf V (1K) &#8212; all engines</td> <td style="white-space:nowrap; color:#888888;">2003&#8211;2009</td> <td style="font-size:12px; color:#888888;">1K0959455CQ, 1K0959455FR</td> </tr> <tr> <td style="font-weight:600;">VW</td> <td>Golf VI (5K) &#8212; all engines</td> <td style="white-space:nowrap; color:#888888;">2008&#8211;2013</td> <td style="font-size:12px; color:#888888;">1K0959455FJ, 1K0959455FE</td> </tr> <tr> <td style="font-weight:600;">VW</td> <td>Golf Plus (5M) &#8212; all engines</td> <td style="white-space:nowrap; color:#888888;">2005&#8211;2014</td> <td style="font-size:12px; color:#888888;">1K0959455CQ</td> </tr> <tr> <td style="font-weight:600;">VW</td> <td>Jetta V (1K) &#8212; all engines</td> <td style="white-space:nowrap; color:#888888;">2005&#8211;2010</td> <td style="font-size:12px; color:#888888;">1K0959455CQ, 1K0959455FR</td> </tr> <tr> <td style="font-weight:600;">VW</td> <td>Passat B6 (3C) &#8212; all engines</td> <td style="white-space:nowrap; color:#888888;">2005&#8211;2010</td> <td style="font-size:12px; color:#888888;">3C0959455F</td> </tr> <tr> <td style="font-weight:600;">VW</td> <td>Passat B7 (3C) &#8212; all engines</td> <td style="white-space:nowrap; color:#888888;">2010&#8211;2015</td> <td style="font-size:12px; color:#888888;">3C0959455F</td> </tr> <tr> <td style="font-weight:600;">VW</td> <td>Passat CC (35) &#8212; all engines</td> <td style="white-space:nowrap; color:#888888;">2008&#8211;2016</td> <td style="font-size:12px; color:#888888;">3C0959455F</td> </tr> <tr> <td style="font-weight:600;">VW</td> <td>Touran (1T) &#8212; all engines</td> <td style="white-space:nowrap; color:#888888;">2003&#8211;2015</td> <td style="font-size:12px; color:#888888;">1K0959455CQ</td> </tr> <tr> <td style="font-weight:600;">VW</td> <td>Eos (1F) &#8212; all engines</td> <td style="white-space:nowrap; color:#888888;">2006&#8211;2015</td> <td style="font-size:12px; color:#888888;">1K0959455FR</td> </tr> <tr> <td style="font-weight:600;">VW</td> <td>Caddy III (2K) &#8212; all engines</td> <td style="white-space:nowrap; color:#888888;">2004&#8211;2015</td> <td style="font-size:12px; color:#888888;">1K0959455CQ</td> </tr> </tbody> </table> </div> </div> <!-- BLOCK 5: INSTALLATION TIPS --> <div class="b-section"> <div class="b-header" onclick="qfToggle('install')"> <div class="b-title">Installation Tips</div> <div class="b-chevron open" id="qf-chevron-install">&#9650;</div> </div> <div class="b-body open" id="qf-body-install"> <table class="qf-table"> <tbody> <tr> <td class="step-num">1</td> <td class="step-text"><strong>Allow the engine to cool completely</strong> before starting work. The radiator fan can activate automatically even with the ignition off on these platforms &#8212; disconnect the negative battery terminal before touching the fan assembly.</td> </tr> <tr> <td class="step-num">2</td> <td class="step-text"><strong>Remove the front bumper cover or grille panel</strong> for easier access on most Golf/Jetta applications. On Passat B6/B7 the upper engine cover and top radiator bracket must be removed. Refer to the relevant workshop manual for your model.</td> </tr> <tr> <td class="step-num">3</td> <td class="step-text"><strong>Disconnect the main wiring connector</strong> from the fan control module before unbolting the shroud. The connector is typically a 4+2 pin plug located on the side of the FCM housing. Press the locking tab and pull straight out &#8212; do not twist.</td> </tr> <tr> <td class="step-num">4</td> <td class="step-text"><strong>Unbolt the fan shroud</strong> from the radiator bracket &#8212; typically 3&#8211;4 x T25 Torx or 10 mm bolts. Lift the assembly straight up and out of the lower locating clips. Take care not to damage the radiator fins during removal.</td> </tr> <tr> <td class="step-num">5</td> <td class="step-text"><strong>Fit the new assembly in reverse order.</strong> Seat the lower locating clips first before tightening the upper bolts. Torque shroud bolts to 8&#8211;10 Nm. Reconnect the wiring connector until it clicks.</td> </tr> <tr> <td class="step-num">6</td> <td class="step-text"><strong>Reconnect the battery and verify operation</strong> with a VCDS scan or OBD-II reader. Clear any stored fault codes. Run the engine at idle and turn on A/C &#8212; the fan should activate within 30&#8211;60 seconds at variable speed, not full blast.</td> </tr> <tr> <td class="step-num">7</td> <td class="step-text"><strong>No coding or adaptation required</strong> after replacement on standard petrol and diesel variants. On some DSG/automatic transmission variants, check for 09 &#8212; Electrics module in VCDS after replacement to confirm no new faults.</td> </tr> </tbody> </table> </div> </div> <!-- BLOCK 6: FAQ --> <div class="b-section"> <div class="b-header" onclick="qfToggle('faq')"> <div class="b-title">Frequently Asked Questions</div> <div class="b-chevron open" id="qf-chevron-faq">&#9650;</div> </div> <div class="b-body open" id="qf-body-faq"> <div class="faq-item"> <div class="faq-q">Can I replace only the Fan Control Module without replacing the whole fan?</div> <div class="faq-a">On the original OEM design, the FCM is not serviceable separately &#8212; it is potted (sealed) inside the fan motor housing. This part supplies a complete fan assembly with integrated FCM, which is the correct and only recommended replacement method.</div> </div> <div class="faq-item alt"> <div class="faq-q">Does this fit both petrol and diesel engines?</div> <div class="faq-a">Yes. The fan assembly is engine-type agnostic &#8212; it is controlled by the ECU via PWM signal regardless of fuel type. It fits all petrol and diesel variants of the listed models, including TDI, FSI, TFSI, and TSI engines.</div> </div> <div class="faq-item"> <div class="faq-q">Is coding or ECU adaptation required after fitting?</div> <div class="faq-a">No coding is required for most variants. The FCM is a plug-and-play replacement. After installation, clear any stored DTCs with a scanner and verify fan operation. On some vehicles with automatic climate control, a VCDS output test is recommended to confirm proper PWM response.</div> </div> <div class="faq-item alt"> <div class="faq-q">What is the difference between 1K0959455CQ, FR, FJ and FE?</div> <div class="faq-a">These are successive supersession numbers for the same assembly &#8212; each revision replaced the previous in the VAG parts system. The physical dimensions, connector pinout (4+2 pins), and mounting are identical. All four numbers refer to the same functional replacement unit.</div> </div> <div class="faq-item"> <div class="faq-q">Is custom or white-label packaging available?</div> <div class="faq-a">Yes. Custom packaging and white-label options are available for wholesale orders (MOQ 20 pcs). Use the inquiry form on this page to discuss print specifications and lead times with our team.</div> </div> </div> </div> <!-- BLOCK 7: FREQUENTLY REPLACED TOGETHER --> <div class="b-section"> <div class="b-header" onclick="qfToggle('related')"> <div class="b-title">Frequently Replaced Together</div> <div class="b-chevron open" id="qf-chevron-related">&#9650;</div> </div> <div class="b-body open" id="qf-body-related"> <p class="note">Parts commonly inspected or replaced at the same service visit as the radiator fan assembly.</p> <table class="qf-table"> <thead> <tr> <th>Part</th> <th>Why Replace Together</th> </tr> </thead> <tbody> <tr> <td style="font-weight:600; white-space:nowrap;">Secondary (A/C Condenser) Fan</td> <td style="color:#555555; font-size:13px;">Both fans are mounted in the same shroud assembly and age together. If the primary fan FCM has failed, the secondary fan motor should be inspected for wear.</td> </tr> <tr> <td style="font-weight:600; white-space:nowrap;">Coolant Temperature Sensor</td> <td style="color:#555555; font-size:13px;">A faulty coolant temp sensor sends incorrect signals to the ECU, causing the same symptom of fan not activating. Often misdiagnosed as FCM failure.</td> </tr> <tr> <td style="font-weight:600; white-space:nowrap;">Thermostat</td> <td style="color:#555555; font-size:13px;">A stuck-open thermostat causes slow warm-up and incorrect ECU fan activation thresholds. Often replaced alongside the fan during overheating diagnosis.</td> </tr> <tr> <td style="font-weight:600; white-space:nowrap;">A/C Pressure Switch</td> <td style="color:#555555; font-size:13px;">The A/C pressure switch signals the ECU to activate the fan when refrigerant pressure rises. A failed switch can mimic FCM failure symptoms when A/C is on.</td> </tr> <tr> <td style="font-weight:600; white-space:nowrap;">Coolant</td> <td style="color:#555555; font-size:13px;">Overheating events caused by fan failure can degrade coolant. Replace with fresh G12/G13 spec fluid whenever the cooling system is opened.</td> </tr> </tbody> </table> </div> </div> </div> <script> function qfToggle(id) { document.getElementById('qf-body-' + id).classList.toggle('open'); document.getElementById('qf-chevron-' + id).classList.toggle('open'); } </script>