NTK by NGK MAF Sensor with Housing 80mm - EPBMFN4-D004H 91534 - for BMW Diesel 118d 120d 123d 316d 318d 320d E81 E82 E87 E88 E90 E91 E92 E93 X1 E84, Mercedes Vito/Viano W639 CDI - Mass Air Flow Meter

NTK Air Mass Meter EPBMFN4-D004H 91534 with 80 mm Housing

Restore crisp throttle response, steady idle and accurate fuelling with this NTK by NGK air mass meter assembly. Supplied pre-mounted in an 80 mm body, part reference EPBMFN4-D004H and part number 91534, it is a direct plug-in replacement for a tired or failed unit on select BMW diesel models and Mercedes-Benz W639 vans. We fit these on our own cars and for customer vehicles and the feedback has been consistently positive for reliability and driveability.

Why enthusiasts choose this meter

• OE-grade NTK sensor element for precise air mass calculation and smooth running
• Complete meter body supplied with 80 mm housing for an easy swap
• Designed without an integrated intake air temperature sensor to match the original layout on the listed applications
• Plug-in replacement that helps resolve uneven idle, hesitation and poor fuelling caused by worn sensors
• Trusted by our workshop and customers for consistent, long-term performance

Technical details

• NTK reference: EPBMFN4-D004H
• Part number: 91534
• Housing: Included
• Bore size: 80 mm inlet and 80 mm outlet
• Overall length: 105 mm
• Supplementary info: Without integrated air temperature sensor

Vehicle coverage

Suitable for a wide range of BMW diesel platforms and Mercedes-Benz W639 vans that use the 80 mm meter housing. For absolute certainty before shipping, we offer a free compatibility check.

BMW applications

• 1 Series E81, E82, E87, E88 - 116d, 118d, 120d, 123d
• 3 Series E90, E91, E92, E93 - 316d, 318d, 320d including xDrive variants
• X1 E84 - 18d, 20d, 23d including xDrive models
• 7 Series E65, E66, E67 - 740d, 745d

Mercedes-Benz applications

• W639 Vito and Viano CDI - 109 CDI, 110 CDI, 111 CDI, 115 CDI, selected 4x4 and 4Matic variants

Fitment help and installation

Want it fitted professionally. MJ Modifications in Warwickshire can install this air mass meter on your BMW or Mercedes-Benz. Request a fitting quote at info@mjmodifications.co.uk.

Compatibility check before dispatch

Send us your UK registration number or the last 7 characters of your VIN at checkout, or email info@mjmodifications.co.uk, and we will confirm suitability prior to shipping.

Search terms customers use

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Part references

• NTK reference: EPBMFN4-D004H
• Manufacturer part number: 91534

Order with confidence for OE-level metering accuracy and dependable running from a brand we trust in our own workshop.