The 2021 BMW X1 has 22 electrical switch & relay parts with verified fitment on this page — 9 part types and 12 brands, covering both the 1.5L L3 Turbocharged and the 2.0L L4 Turbocharged. Each part includes a manufacturer part number and application notes.
On the 2021 BMW X1, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches. Most of the listed parts are Brake Light Switch (5 parts), Power Window Switch (5 parts) and Oil Pressure Sender / Switch (4 parts). The other 6 part types cover the remaining 8 parts.
The 2021 BMW X1 was sold with both the 1.5L L3 Turbocharged and the 2.0L L4 Turbocharged. 13 parts fit every engine; the other 9 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2021 BMW X1 electrical switch & relay parts are STANDARD MOTOR PRODUCTS (5 parts), WELLS (5 parts) and VEMO (3 parts), plus 9 more brands. Quality grades include Standard Replacement and Economy.
2 parts on this 2021 BMW X1 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including STANDARD MOTOR PRODUCTS SLS541 (Brake Light Switch) and STANDARD MOTOR PRODUCTS DWS2007 (Power Window Switch). Click any part number to see every vehicle that part fits.
A/C Refrigerant Pressure Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS Fits: all 2021 X1 engines | 20997 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pressure Switch | View on Amazon |
| REIN Fits: 2.0L L4 Turbocharged | ACS0243P | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| UAC Fits: all 2021 X1 engines | SW11170C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pressure Transducer | View on Amazon |
This table covers the pressure switches on the A/C circuit. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
3 A/C Refrigerant Pressure Switch parts for the 2021 BMW X1 come from 3 brands — FOUR SEASONS, REIN and UAC. 2 parts fit every engine; the other 1 is engine-specific.
Part numbers include FOUR SEASONS 20997, REIN ACS0243P and UAC SW11170C.
ABS Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2021 X1 engines | RY776 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Terminal Quantity: 4 | View on Amazon |
This table covers the relays that control the ABS circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
This group shows a single part: STANDARD MOTOR PRODUCTS RY776.
Brake Light Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: all 2021 X1 engines | 920458 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| VEMO Fits: 2.0L L4 Turbocharged | V20730151 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: 2.0L L4 Turbocharged | SLS541 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| BECK/ARNLEY Fits: 2.0L L4 Turbocharged | 2012711 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS Fits: all 2021 X1 engines | 1S12667 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the pedal-mounted switch that turns on the brake lamps. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
5 Brake Light Switch parts for the 2021 BMW X1 come from 5 brands — DORMAN, VEMO, STANDARD MOTOR PRODUCTS and 2 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS SLS541. 2 parts fit every engine; the other 3 are engine-specific.
The Economy section lists 2 options from DORMAN and VEMO — the catalog's value-priced group. DORMAN 920458 is listed in this group.
In the Standard Replacement grade, STANDARD MOTOR PRODUCTS, BECK/ARNLEY and WELLS supply 3 parts: built to original-equipment specification. A representative part number is STANDARD MOTOR PRODUCTS SLS541.
This group includes STANDARD MOTOR PRODUCTS SLS541, DORMAN 920458 and VEMO V20730151 and the remaining parts above.
Headlamp Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: all 2021 X1 engines | 1S18224 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the column or dash switches that control the exterior lamps. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
One part is listed for the 2021 BMW X1 — WELLS 1S18224.
Ignition Starter Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: all 2021 X1 engines | 1S17773 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Push Button Switch | View on Amazon |
This table covers the ignition switches that feed the starter circuit. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
One part is listed for the 2021 BMW X1 — WELLS 1S17773.
Oil Pressure Sender / Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FACET Fits: 2.0L L4 Turbocharged | 250015 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| GPD Fits: 2.0L L4 Turbocharged | 1816559 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Light | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2021 X1 engines | PS754 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Light | View on Amazon |
| WELLS Fits: 2.0L L4 Turbocharged | 1S16103 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the senders and switches that report oil pressure to the gauge or lamp. Typical signs include a lamp that stays on, or a gauge that never moves. Confirm power and ground at the connector before replacing the sender or switch.
4 Oil Pressure Sender / Switch parts for the 2021 BMW X1 come from 4 brands — FACET, GPD, STANDARD MOTOR PRODUCTS and 1 other brand. 1 part fits every engine; the other 3 are engine-specific.
Listed part numbers: FACET 250015, GPD 1816559 and STANDARD MOTOR PRODUCTS PS754, plus the other parts above.
Power Window Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: all 2021 X1 engines | DWS2007 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Black | View on Amazon |
| MARELLI Fits: all 2021 X1 engines | CI51063 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Left | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2021 X1 engines | DWS2012 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Black | View on Amazon |
| VEMO Fits: 2.0L L4 Turbocharged | V20730085 | 🇺🇸 US 🇨🇦 CA | Front Right | View on Amazon |
| WELLS Fits: all 2021 X1 engines | 1S16299 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right | View on Amazon |
This table covers the switches that command each window motor. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
5 Power Window Switch parts for the 2021 BMW X1 come from 4 brands — STANDARD MOTOR PRODUCTS, MARELLI, VEMO and 1 other brand. The "Popular" part is STANDARD MOTOR PRODUCTS DWS2007. 4 parts fit every engine; the other 1 is engine-specific.
This group includes STANDARD MOTOR PRODUCTS DWS2007, MARELLI CI51063 and STANDARD MOTOR PRODUCTS DWS2012 and the remaining parts above.
Radiator Fan Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ÜRO PARTS Fits: all 2021 X1 engines | 64116930015 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Sensor | View on Amazon |
This table covers the Radiator Fan switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
This group shows a single part: ÜRO PARTS 64116930015.
Turn Signal Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO Fits: 2.0L L4 Turbocharged | V20800011 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the combination / turn-signal switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
This group shows a single part: VEMO V20800011.
Buying Electrical Switch & Relay Parts for a 2021 BMW X1
On this vehicle, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches.
- Match the engine first. Some electrical switch & relay parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, inspect the connector terminals behind any failed switch — heat damage there will kill the new part too.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Brake Light Switch and Power Window Switch .
Frequently Asked Questions
How many electrical switch & relay parts fit the 2021 BMW X1?
Our catalog currently lists 22 electrical switch & relay parts for the 2021 BMW X1 across 9 subcategories and 12 brands, covering both the 1.5L L3 Turbocharged and the 2.0L L4 Turbocharged. Each part is matched to the engine(s) it fits.
Do electrical switch & relay parts differ between 2021 BMW X1 engines?
Some do. 13 parts fit every engine; the other 9 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of electrical switch & relay problems on a 2021 BMW X1?
Common symptoms include accessories that work intermittently, a click without action, or one function dead while its fuse tests fine. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, inspect the connector terminals behind any failed switch — heat damage there will kill the new part too.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2021 BMW X1 was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2021 BMW X1?
First match the engine — each row shows which engine(s) the part fits. Then swap a suspect relay with an identical known-good one from the fuse box before buying — it is the fastest diagnostic there is. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 BMW X1
Electrical Switch & Relay Parts for Other BMW X1 Years
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