Current BMW:

(E36) 3-series 1992-1999 Clear BMW chassis

BMW E36 Air Mass Sensors and HFMs

We sell OEM air mass sensors, air flow meters, and HFMs (Hot Film Meter) for many BMWs. When the mass air sensor is bad you will notice your engine running out of tune. Your fuel mileage will suffer, throttle response will be poor, and you will notice a lack of power.

There should be a Check Engine Light to alert you that the air sensor is having problems. However, there may not be a fault code for the air meter itself. Often times the code comes up as fuel trim or lean condition. In these cases the air sensor could be just one of a number of potential problems.

We only sell air sensors from Original Equipment Manufacturers like, Bosch, VDO, and Siemens. Please note that HFMs are an electrical part and cannot be returned for refund.

Available for the following BMWs: (click icon to change BMW)

E36 M3 Euro HFM (0 280 217 806) (more info)
This Euro HFM (Hot Film Meter or mass air sensor) from the Euro M3 is larger in diameter than the USA's M3 meter. This HFM will meter and flow more air than the stock one, giving you more power. THIS REQUIRES PROPER SOFTWARE to run correctly and you may also need larger fuel injectors to prevent the engine from running lean.

We use this HFM on the 1995 M3 or any 1996+ S52 engine that has been converted to OBD-1 electronics. We prefer to use this HFM over the 540 meter because this is a direct bolt-on to the Euro airbox (for those that want a factory appearance). This HFM is not used on our OBD-2 Performance Kits or with OBD-2 Shark Injector software.

factory BMW part number = 13 62 1 403 123
OEM Bosch part number = 0 280 217 806

Part #: 13621403123 (13-62-1-403-123)

Price: $359.95 (USD)

HFM Adapter (more info)
HFM (Mass air meter) adapter - most often used on the E36 M3. This adapts the 540i HFM or the Euro M3's 3.5" HFM to fit into the US M3 stock 3" intake boot. Fits between the HFM and the throttle body elbow boot and provides a smooth "step down" of the air flow. Includes hose clamp. Desinged to work with the Conforti Cold Air Intake but many people buy this and configure it into their own kit.

Part #: ADAPT

Price: $49.95 (USD)

HFM/Mass Air Sensor - E36 325i 1992, E34 525i 91-92 (more info)
Replacement mass air sensor (HFM) for BMW 325i 1992, 525i 1991-1992 with M50 engine. The M50 engines in the E36 and E34 have a notorious fault for hesitation and sluggish response. If this is your situation the MAF should be on your list to check. The HFM is easy to replace and could cure a variety of problems. We also sell HFM sensor cleaner that may clear your problem (see below).

This item fits the following BMWs:
1992 E36 BMW 325i 325is
1991-1992 E34 BMW 525i

Part #: 13621466359 (13-62-1-466-359)

Price: $368.95 (USD)

HFM/Mass Air Sensor for M50 Engine (E34, E36) (more info)
Replacement mass air sensor (HFM) for M50, S50-US engine. The M50 engines in the E36 and E34 have a notorious fault for hesitation and sluggish response. If this is your situation the MAF should be on your list to check. The HFM is easy to replace and could cure a variety of problems. We also sell HFM sensor cleaner that may clear your problem (see below). This mass air sensor also fits M60B30 engine. 3.0" diameter.

Complete your repair with a new boot and new clamps by selecting the option below. Boots are OE-spec or Original BMW and we use high-quality factory-style clamps.

Complete Application List:
1993-95 E34 525i - M50 engine with VANOS (M50TU)
1993-95 E36 325i, 325is, 325iC - M50 engine with VANOS (M50TU)
1995 E36 M3 3.0-liter
1994-95 E34 530i - M60 3.0-liter engine

Part #: 13621747155 (13-62-1-747-155)

Price: $354.95 (USD)

HFM/Mass Air Sensor for M52 Engine (E36, E39) (more info)
Replacement mass air sensor for M52, S52-US engines. This HFM is an OEM part, made by Siemens VDO. 3.0" diameter.

The M52 engines in the E36 and E39 have a notorious fault for hesitation and sluggish response. If this is your situation the MAF should be on your list to check. The HFM is easy to replace and could cure a variety of problems. We also sell HFM sensor cleaner that may clear your problem (see below).

Complete your repair with a new boot and new clamps by selecting the option below. Boots are OE-spec or Original BMW and we use high-quality factory-style clamps.

Complete Application List:
1996-99 E36 323is, 323iC, 328i, 328is, 328iC
1996-99 E36 M3 3.2-liter
1997-98 E39 528i

Part #: 13621703275 (13-62-1-703-275)

Price: $354.95 (USD)

Turner-Porsche 3.5" HFM for E36 M3 (OBD-II) (more info)
This 3.5" HFM is used in our OBD-II Performance Packages on the 1996-1999 E36 M3 (and MZ3 S52). This is a Plug & Play and seamless kit built using a Porsche HFM, custom wiring harness adapter, and harness mounting bracket. This HFM is preferred because it has a greater resolution and reads larger quantities of air more precisely than the 540 or Euro M3 HFMs. We have put together this kit to be completely reversible and plug and play using factory plugs and connectors. It requires no splicing or modification of your stock connector harness, avoidng the pitfalls that can come from exposing your factory wiring. Using this without the harness will require you to bridge the grounds of the factory harness together in order for the HFM to send the correct signals to the computer.

The correct software, and related intake components, are required to use this larger HFM! See below for software options from Turner Motorsport. Or click here for our complete list of E36 Performance Packages.

Software Options
Stage 2 - 3.5" HFM, 24lb injectors
Stage 3 - 3.5" HFM, 24lb injectors, Schrick camshafts
Stage 3+ - 3.5" HFM, 24lb injectors, Schrick camshafts, M50 manifold
Stage 4 - 3.5" HFM, 24lb injectors, Schrick camshafts, headers
Stage 4+ - 3.5" HFM, 24lb injectors, Schrick camshafts, headers, M50 manifold
Stage 5 - 3.5" HFM, 24lb injectors, Schrick camshafts, headers, cat-delete

This 3.5" HFM is intended for the following BMWs:
1996-1999 E36 BMW M3
1997-2000 Z3 BMW M Roadster M Coupe

Part #: TEN9989HFM

Price: $499.56 (USD)