VW Audi Seat Skoda Heater Resistor 1J0907521 1996-2010 657364M 5DS00646701Use this exact title in eBay for strong search coverage without using the words “genuine” or “OEM”.
What this part does
This heater blower resistor controls fan-speed operation for the cabin blower. When it fails, the heater/air-con fan may only work on certain speeds, stop altogether, or behave intermittently.
Common fault symptoms
- Blower only works on one speed, often full speed.
- Fan works intermittently or cuts out completely.
- Weak cabin airflow even when the switch is turned up.
- Burning smell, melted connector, or heat damage around the resistor plug.
Part numbers
| Type | Details |
|---|---|
| Manufacturer part numbers | 1J0907521, 657364M, 5DS00646701 |
| Formatted references | 1J0 907 521, 657 364 M, 5DS 006 467 01 |
| Item type | Heater blower resistor / blower motor resistor / fan speed resistor |
| Condition | Used |
| VAT | VAT not chargeable separately under the global VAT scheme |
| Shipping note | International dispatch via eBay GSP where available |
Part number, connector shape, vehicle body style, and HVAC system specification.
Confirmed compatibility guide
Only list vehicles you are happy to stand behind. This table keeps the wording tight and buyer-friendly.
| Vehicle | Verified years | Fitment note |
|---|---|---|
| Volkswagen Golf Mk4 / Golf IV | 1998–2004 | Confirmed in seller and parts-listing references. |
| Volkswagen Bora / Jetta IV | 1998–2005 | Confirmed in cross-listing references for 1J0907521. |
| Volkswagen New Beetle | 1998–2010 | Confirmed in seller references for 1J0907521. |
| SEAT Leon 1M | 1998–2006 | Confirmed in seller references for 1J0907521. |
| SEAT Alhambra | 2000–2006 | Confirmed in seller references for 1J0907521. |
| Audi A3 8L | 1996–2003 | Model-generation guide plus 8L-specific listing references; verify by photo and part number. |
If you want to be extra strict, keep “Audi A3 8L” as a verified platform note and ask the buyer to compare the plug and housing shape.
Fitting guide
| Item | Information |
|---|---|
| Typical labour time | 0.5–1.0 hour depending on access and trim layout |
| Estimated difficulty | Easy to moderate |
| Tools required | Torx driver set, trim tool, torch, small ratchet, gloves |
| Where it fits | Inside the HVAC / blower housing area behind the dashboard trim or glovebox area depending on model |
| What it controls | Cabin blower fan speeds for heating and air conditioning airflow |
- Disconnect the battery if access requires working around electrical connectors.
- Remove the relevant lower trim or glovebox panel carefully.
- Unplug the resistor connector and inspect for heat damage.
- Transfer any clips or seals if needed and refit the new unit securely.
- Test all blower speeds before fully refitting trim.
Garage labour estimator
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Optional extra copy lines
- Verified by part number and visual comparison.
- Best practice is to match connector, shape, and mounting points before purchase.
- Ideal for customers who want a cost-effective factory-spec replacement.
- Used parts can offer a big saving versus buying new, depending on condition and market availability.