The 2021 BMW M235I has 30 electrical parts with verified fitment on this page — 5 part types and 11 brands, covering the 2.0L L4 Turbocharged engine. Each part includes a manufacturer part number and application notes.
The electrical system on the 2021 BMW M235I covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. The largest groups are Battery (19 parts), Alternator / Generator (3 parts) and Parking Aid Sensor (3 parts). The other 2 part types cover the remaining 5 parts.
Every part on this page is matched to the 2.0L L4 Turbocharged — the only engine offered in the 2021 BMW M235I.
The most listed brands for 2021 BMW M235I electrical parts are FVP (5 parts), DEKA (3 parts) and LUCAS (3 parts), plus 8 more brands. Quality grades include AGM, Remanufactured and Performance AGM.
4 parts on this 2021 BMW M235I page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including DEKA 9A48 (Battery) and DEKA 9A94R (Battery). Click any part number to see every vehicle that part fits.
Alternator / Generator
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAI GLOBAL | 22174N | 🇺🇸 US 🇨🇦 CA | 180 Amps | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP | 11848 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| PURE ENERGY | 11848 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
This table covers the alternators that charge the battery and run the electrical load. Typical signs include dim lights at idle, a battery lamp, or a growl from the charging pulley. Load-test the battery and inspect the belt and grounds — a bad ground mimics a failed alternator.
3 Alternator / Generator parts are listed for the 2021 BMW M235I, from WAI GLOBAL, FVP and PURE ENERGY.
In the New grade, WAI GLOBAL supplies 1 part: brand-new units rather than rebuilt ones. A representative part number is WAI GLOBAL 22174N.
In the Remanufactured grade, FVP and PURE ENERGY supply 2 parts: factory-rebuilt units with new wear components. A representative part number is FVP 11848.
Part numbers include WAI GLOBAL 22174N and FVP 11848, among others listed above.
Battery
AGM (Extended Life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA Popular | 9A48 | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| DEKA Popular | 9A94R | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| FVP Popular | P94RAGM | 🇺🇸 US 🇨🇦 CA | Platinum AGMBCI Group: 94R | View on Amazon |
| LUCAS Popular | LBAGM004A | 🇺🇸 US 🇨🇦 CA | BCI Group: 48AGM | View on Amazon |
| BOSCH | S6587B | 🇺🇸 US 🇨🇦 CA | AGMAGM | View on Amazon |
| DEKA | 9A47 | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| EXIDE | MXH5L247 | 🇺🇸 US 🇨🇦 CA | Marathon MaxBCI Group 47 (H5) | View on Amazon |
| EXIDE | MXH6L348 | 🇺🇸 US 🇨🇦 CA | Marathon MaxBCI Group 48 (H6) | View on Amazon |
| EXIDE | MXH7L494R | 🇺🇸 US 🇨🇦 CA | Marathon MaxBCI Group 94R (H7) | View on Amazon |
| FVP | P47AGM | 🇺🇸 US 🇨🇦 CA | Platinum AGMBCI Group: 47 | View on Amazon |
| FVP | P48AGM | 🇺🇸 US 🇨🇦 CA | Platinum AGMBCI Group: 48 | View on Amazon |
| LUCAS | LBAGM001A | 🇺🇸 US 🇨🇦 CA | BCI Group: 47AGM | View on Amazon |
| LUCAS | LBAGM006A | 🇺🇸 US 🇨🇦 CA | BCI Group: 49AGM | View on Amazon |
| P1MAX | PMAGMH547 | 🇺🇸 US 🇨🇦 CA | BCI Group 47 AGM680 CCA | View on Amazon |
| P1MAX | PMAGMH648 | 🇺🇸 US 🇨🇦 CA | BCI Group 48 AGM760 CCA | View on Amazon |
| P1MAX | PMAGMH794R | 🇺🇸 US 🇨🇦 CA | BCI Group 94R AGM800 CCA | View on Amazon |
Performance AGM (Extended Life + Increased Power)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FULLRIVER | FT61047 | 🇺🇸 US 🇨🇦 CA | BCI Group 47(Length X Width X Height) 9.49 In x 6.89 In x 7.48 In | View on Amazon |
| FULLRIVER | FT68048 | 🇺🇸 US 🇨🇦 CA | BCI Group 48(Length X Width X Height) 10.94 In x 6.89 In x 7.48 In | View on Amazon |
| FULLRIVER | FT85094R | 🇺🇸 US 🇨🇦 CA | BCI Group 94R(Length X Width X Height) 12.36 In x 6.85 In x 7.48 In | View on Amazon |
This table covers the batteries listed by group size and specification. Typical signs include slow cranking, a battery lamp, or a no-start after the vehicle sat overnight. Confirm group size and terminal layout in the notes. Clean the posts and the ground before condemning the battery.
19 Battery parts for the 2021 BMW M235I come from 7 brands — DEKA, FVP, LUCAS and 4 other brands. The "Popular" part is DEKA 9A48.
In the AGM (Extended Life) grade, DEKA, FVP, LUCAS and 3 other brands supply 16 parts: grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. A representative part number is DEKA 9A48.
In the Performance AGM (Extended Life + Increased Power) grade, FULLRIVER supplies 3 parts: grouped under the catalog's "Performance AGM (Extended Life + Increased Power)" designation — the notes column spells out what sets them apart. A representative part number is FULLRIVER FT61047.
Lighting Control Module (LCM)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO | V20730305 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VEMO | V20730306 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the modules that control the exterior lighting.
VEMO supplies both parts for the 2021 BMW M235I.
This group includes VEMO V20730305 and VEMO V20730306.
Parking Aid Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VARIOUS MFR | BM1075103 | 🇺🇸 US 🇨🇦 CA | Customer Paints to Match | View on Amazon |
| VARIOUS MFR | BM1075104 | 🇺🇸 US 🇨🇦 CA | Customer Paints to Match | View on Amazon |
| VARIOUS MFR | BM1075105 | 🇺🇸 US 🇨🇦 CA | Front OuterF44 | View on Amazon |
This table covers the ultrasonic park-aid sensors in the bumper. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors.
VARIOUS MFR supplies the 3 Parking Aid Sensor parts for the 2021 BMW M235I.
This group includes VARIOUS MFR BM1075103, VARIOUS MFR BM1075104 and VARIOUS MFR BM1075105.
Starter Motor
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAI GLOBAL | 31090N | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP | 12845 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| PURE ENERGY | 12845 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
This table covers the starter motors that crank the engine. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor.
3 Starter Motor parts are listed for the 2021 BMW M235I, from WAI GLOBAL, FVP and PURE ENERGY.
New: 1 part, from WAI GLOBAL. A representative part number is WAI GLOBAL 31090N.
Remanufactured: 2 parts, from FVP and PURE ENERGY. A representative part number is FVP 12845.
Part numbers include WAI GLOBAL 31090N and FVP 12845, among others listed above.
Buying Electrical Parts for a 2021 BMW M235I
On this vehicle, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors.
- Confirm you have the 2.0L L4 Turbocharged engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, clean or renew the battery terminals and grounds with any charging-system repair.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Battery and Alternator / Generator .
Frequently Asked Questions
How many electrical parts fit the 2021 BMW M235I?
Our catalog currently lists 30 electrical parts for the 2021 BMW M235I across 5 subcategories and 11 brands, covering the 2.0L L4 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical problems on a 2021 BMW M235I?
Common symptoms include slow cranking on cold mornings, a battery light that flickers, dim lights at idle, or a check-engine code pointing at a sensor circuit. 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, clean or renew the battery terminals and grounds with any charging-system repair.
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 M235I 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 M235I?
Every part on this page is matched to the 2.0L L4 Turbocharged engine. Then test before replacing — a failed alternator and a bad ground can look identical, and sensors are frequently condemned for wiring faults. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 BMW M235I
Electrical Parts for Other BMW M235I Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.