Air and Fuel Oxygen Sensors, Controllers and Components

Bosch

3.5" HFM 5-Wire Mass Air Flow Sensor

$581.31

SKU: 0280217803

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The Bosch 0280217803 is a Mass Air Flow (MAF) sensor. It is described as the larger 3.5" HFM, utilizing a 5-wire connector. This sensor is suitable for OBD-II E36 M3 and MZ3 models from 1996-2000.
Show original supplier description
The Bosch 0280217803 is a 3.5-inch Mass Air Flow (MAF) sensor, also known as a Hot Film Meter (HFM), designed to measure the amount of air entering an engine. This 5-wire sensor is recognized for its larger housing diameter and is specifically cited as ideal for use in OBD-II E36 M3 and MZ3 vehicles manufactured between 1996 and 2000. While its original application was for Porsche 993 911 (non-Turbo) models, its fitment and tuning characteristics make it a suitable upgrade for compatible BMWs. It comes with a 12-month, unlimited mileage warranty.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandBosch
Part Number0280217803
CategoryAir and Fuel

About MOTORMIA

5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy