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BMW Heating & Air Conditioning for BMW 3 Series E46 (1999-2005)

Clear BMW chassis

Is your BMW blowing hot air when you want AC? Not getting enough hot air when it's cold out? Well we have the heater cores, heater valves, blower motors and related parts for your BMW. Tip: Is your air conditioning / heater fan going crazy? Does it only run at one speed or not work at all? Then a likely culprit is this blower resistor, often called the "final stage unit" in the BMW world. The function of this part is to regulate the voltage of the blower motor on BMWs which use the digital climate control. This blower resistor is a notorious weakness on the cars that use it. When it fails, your blower fan speed can fluctuate as if it has a mind of its own, or get stuck at one position. BMW has updated this item several times and we only carry the most current version.

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BMW Natural Air Starter Kit

T#:26938396

Part#: 83125A7DC77

In Stock

$ 41.66

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 39.42 USD

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$ 39.42 USD

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Genuine BMW Activated Carbon Cabin Air Filter - E46, E83 X3

T#:361815

Part#: 64319257504

In Stock

Sale - Save 8% $ 62.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 57.78 USD

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Sale - Save 8%

$ 62.99

This product was last offered at the strikethrough price on
08-26-2026

$ 57.78 USD

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Breathe fresh air again! As an important part of your car's heating ventilation and air conditioning (HVAC) system, the microfilter should be replaced every year. Activated Charcoal helps eliminate foul odors, like diesel exhaust, burning oil, etc.

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Genuine BMW Cabin Filter Housing Seal

T#:13947

Part#: 51718215915

Ships in 3 Business Days

3% off MSRP $ 30.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 29.99 USD

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3% off MSRP

$ 30.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 29.99 USD

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Genuine BMW Seal, Filter Housing
This item fits the following BMW Chassis:
E46 M3,E46

Front Plate Of Controls Air Conditioner - E46

T#:149754

Part#: 64116904311

Special Order: No Guaranteed ETA

2% off MSRP $ 145.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 142.99 USD

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2% off MSRP

$ 145.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 142.99 USD

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Genuine BMW Front Plate Of Controls Air Conditioner
This item fits the following BMW Chassis:
E46 M3,E46

ACM A/C Expansion Valve - E46, E83

For vehicles with production date from 03/1999

T#:370958

Part#: 64503452759

Ships in 3 Business Days

$ 58.99

This product was last offered at the strikethrough price on
05-07-2026

$ 56.99 USD

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$ 56.99 USD

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Part of the a/c system

ACM A/C Pressure Sensor

T#:370959

Part#: 64539181464

In Stock

10% off MSRP $ 56.57

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 50.99 USD

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Qty

10% off MSRP

$ 56.57

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 50.99 USD

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Part of the A/C system

Genuine BMW Blower Motor Temperature Sensor - E93 E83 E92 E84 E88 E66...

T#:149906

Part#: 64116930015

Ships in 3 Business Days

6% off MSRP $ 51.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 48.99 USD

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6% off MSRP

$ 51.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 48.99 USD

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Genuine BMW Temperature Sensor, Heater/Evaporator
This item fits the following BMW Chassis:
E46 M3,E82 1M Coupe,E46,E82,E83 X3,E90,E92,E93,i3

Genuine BMW Air Conditioning Adjustment Lever Repair Kit - E83 E46 ...

T#:150190

Part#: 64118372791

Special Order: No Guaranteed ETA

4% off MSRP $ 24.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 23.99 USD

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4% off MSRP

$ 24.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 23.99 USD

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Genuine BMW Set Small Parts F Air Cond.Adjust.Lever
This item fits the following BMW Chassis:
E46 M3,E46,E83 X3

Lock Insert

T#:149404

Part#: 64111376327

In Stock

$ 1.99 USD

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Qty

$ 1.99 USD

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Genuine BMW Lock Insert
This item fits the following BMW Chassis:
E30 M3,E34 M5,E60 M5,E46 M3,E30,E34,E46,E90,E92,E93

BMW NATURAL AIR REFILL FORES

T#:26938394

Part#: 83125A7DCA3

In Stock

$ 15.99 USD

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Qty

$ 15.99 USD

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A/C O-Ring (10.8mm Diameter)

T#:3018037

Part#: 64508375741

In Stock

$ 3.99

This product was last offered at the strikethrough price on
05-07-2026

$ 2.99 USD

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Qty

$ 2.99 USD

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O-Rings are used to seal various items and without them, you might experience a leak in your vehicle. When doing any sort of work on your air conditioning system, be sure to use new O-Rings to ensure a proper seal. Getting the correct O-Rings can be a chore, but ECS Tuning has made it easy.

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ACM O-Ring

T#:361824

Part#: 64508390602

In Stock

Sale - Save 57% $ 3.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1.73 USD

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Qty

Sale - Save 57%

$ 3.99

This product was last offered at the strikethrough price on
05-07-2026

$ 1.73 USD

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Diameter is 11.1MM

BMW NATURAL AIR REFILL MOUNT

T#:26938390

Part#: 83125A7DCA2

In Stock

$ 17.99 USD

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Qty

$ 17.99 USD

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BMW NATURAL AIR REFILL RELAX

T#:26938395

Part#: 83125A7DC98

In Stock

$ 15.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 14.99 USD

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$ 14.99 USD

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Air Conditioning O-Ring Kit

T#:55245792

Part#: 645083XKT

In Stock

$ 13.51 USD

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Qty

$ 13.51 USD

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This Genuine BMW A/C O-Ring Kit features factory-specified 10.8mm and 23mm gasket rings engineered to seal critical high-pressure and suction line connections.

Air Conditioning Service Valve - R134A

T#:16242204

Part#: 64509177579

Ships in 2 Business Days

$ 12.99

This product was last offered at the strikethrough price on
05-08-2026

$ 10.99 USD

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Qty

$ 10.99 USD

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ACM Blower Motor Temperature Sensor - E46, E66, E82, E83, E84, E88, E...

T#:377011

Part#: 64116930015

Ships in 1-2 days

$ 35.99

This product was last offered at the strikethrough price on
05-07-2026

$ 34.99 USD

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Qty

$ 34.99 USD

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Located in the HVAC system

ACM Air Conditioning O-Ring - E46

Used in the connection between evaporator suction pipe and compressor

T#:361819

Part#: 64538375742

Back Ordered

$ 3.99

This product was last offered at the strikethrough price on
05-07-2026

$ 2.99 USD

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Qty

$ 2.99 USD

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13.7mm

Genuine BMW Pressure Hose Assy Compressor - 64536902681

T#:152272

Part#: 64536902681

Ships in 3 Business Days

3% off MSRP $ 278.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 269.99 USD

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Qty

3% off MSRP

$ 278.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 269.99 USD

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Genuine BMW Pressure Hose Assy Compressor-Condenser
This item fits the following BMW Chassis:
E46 M3,E46

Genuine BMW E46 M3 Air Conditioning Control - 64116931839

T#:149912

Part#: 64116931839

Ships in 6 Business Days

2% off MSRP $ 722.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 704.99 USD

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Qty

2% off MSRP

$ 722.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 704.99 USD

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Genuine BMW E46 M3 Air Conditioning Control

Enhance your BMW E46 M3's climate control with the Genuine BMW E46 M3 Air Conditioning Control. Engineered to OEM specifications, this air conditioning control unit ensures precise temperature regulation and reliable performance. Its user-friendly interface and seamless integration offer enhanced convenience and comfort for drivers and passengers.

Optimal climate control functionality
Precise temperature regulation
User-friendly interface
Enhanced convenience and comfort

Genuine BMW Air Conditioning Control
This item fits the following BMW Chassis:
E46 M3,E46

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Genuine BMW A/C Position Drive Motor - Right - E46 E83 X3

T#:149942

Part#: 64116934824

Ships in 2 Business Days

2% off MSRP $ 93.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 91.99 USD

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Qty

2% off MSRP

$ 93.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 91.99 USD

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Genuine BMW Positng. Drive, Fresh Air/Recirc. Right
This item fits the following BMW Chassis:
E46 M3,E46,E83 X3

Genuine BMW Water Valve - E46 M3 Z3M Z4M

T#:16274

Part#: 64118369807

Special Order: No Guaranteed ETA

3% off MSRP $ 509.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 496.99 USD

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Qty

3% off MSRP

$ 509.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 496.99 USD

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Genuine BMW Water Valve With Additional Water Pump
This item fits the following BMW Chassis:
E46 M3,E46

Rubber Grommet - E36, E38, E39, E46, E53

D=22Mm/D=4Mm

T#:139675

Part#: 61131356312

In Stock

Sale - Save 43% $ 4.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 2.82 USD

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Qty

Sale - Save 43%

$ 4.99

This product was last offered at the strikethrough price on
06-04-2026

$ 2.82 USD

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Genuine BMW Rubber Grommet - D=22mm/D=4mm
This item fits the following BMW Chassis:
E39 M5,E46 M3,E53 48IS,E36,E38,E39,E46,E53 X5

BMW NATURAL AIR REFILL ENDLE

T#:26938391

Part#: 83125A7DCA4

In Stock

$ 15.99 USD

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Qty

$ 15.99 USD

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ACM Air Conditioning Schrader Valve - R134A

T#:372320

Part#: 64509177577

Back Ordered

$ 11.99

This product was last offered at the strikethrough price on
05-07-2026

$ 10.99 USD

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Qty

$ 10.99 USD

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Keep your A/C working perfectly

Air Conditioning O-Ring Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:56616383

Part#: 64508374959KT2

Back Ordered

$ 39.33 USD

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Qty

$ 39.33 USD

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Designed for BMW enthusiasts who demand zero leak reliability, this A/C O-Ring Kit delivers precision fit seals crafted from high temperature, chemical resistant elastomers. Whether you're completing routine maintenance or overhauling your climate control setup

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