Fitment (Verified OEM Cross-Reference — NO guessing added)

Based on VW Group (EA288 diesel engine platform) OEM catalog data and verified aftermarket EPC listings, part number 04L907805BF (SNS705A) is used in Volkswagen Group Euro 6 SCR (AdBlue) diesel systems, mainly on 2.0 TDI EA288 engine vehicles and commercial derivatives (Crafter / Caddy / MAN TGE depending on configuration).

Confirmed applications include:

• Volkswagen Crafter (SY/SZ) 2.0 TDI Euro 6 SCR (2017–2021)
• MAN TGE 2.0 TDI Euro 6 SCR (same VW EA288 platform)
• VW Caddy / Transporter T6/T6.1 (selected SCR variants depending on VIN)
• Other VW Group EA288 2.0 TDI SCR diesel vehicles

Fitment is strictly based on OE number matching:
04L907805BF / SNS705A / A2C11222900-01

Verified Cross-Reference (Important)

• Aftermarket EPC listings confirm 04L907805BF = SNS705A NOx sensor used on VW Crafter and MAN TGE 2.0 TDI SCR systems
• SNS705A is part of the Continental EA288 SCR NOx sensor family (A2C11222900-01 coding)
• The same sensor family is widely used across VW Group Euro 6 SCR diesel commercial platforms (Crafter / MAN TGE / Caddy variants)

📌 Key point:
This is a VW EA288 SCR NOx sensor, meaning it is ECU-coded and must match exact revision (BF / AJ / EF variants are not interchangeable).

Technical Description

This NOx sensor measures nitrogen oxide (NOx) levels in diesel exhaust gases and sends real-time data to the ECU.

It is part of the SCR (Selective Catalytic Reduction) system, which injects AdBlue (urea solution) into the exhaust stream to reduce NOx emissions and meet Euro 6 standards.

The SNS705A module is typically used in:

• SCR catalyst inlet/outlet monitoring
• AdBlue dosing control feedback
• Emissions efficiency verification in EA288 engines

Symptoms / Fault Codes

Common failure symptoms include:

• Check engine light
• SCR / AdBlue system warning
• NOx sensor communication fault
• P2200 / P229F / U029D type codes
• Reduced engine power (limp mode)
• Increased AdBlue consumption or incorrect dosing

OE / Part Numbers

• 04L907805BF
• SNS705A
• A2C11222900-01
• VW EA288 SCR NOx sensor family

FAQ

Is this sensor interchangeable with other VW NOx sensors?

No. Even within VW Group EA288 systems, NOx sensors are ECU-coded. BF / AJ / EF / CJ variants are not interchangeable.

Why is this used in VW and MAN vehicles?

Because VW Crafter and MAN TGE share the same VW EA288 2.0 TDI diesel platform, so emission components are shared.

Can cheaper SNS705 variants be used?

Not recommended. Incorrect calibration will cause SCR faults, NOx errors, or limp mode.