• N-013-851-4 Genuine VW/Audi turbocharger line sealing washer, washer bore and outer rim, original product photo
  • N-013-851-4 Genuine VW/Audi turbocharger line sealing washer, flat sealing face, original product photo
  • N-013-851-4 Genuine VW/Audi turbocharger line sealing washer, washer bore and outer rim, repeated original gallery photo 3
  • N-013-851-4 Genuine VW/Audi turbocharger line sealing washer, flat sealing face, repeated original gallery photo 4
  • N-013-851-4 Genuine VW/Audi turbocharger line sealing washer, washer bore and outer rim, repeated original gallery photo 5
  • N-013-851-4 Genuine VW/Audi turbocharger line sealing washer, flat sealing face, repeated original gallery photo 6
  • N-013-851-4 Genuine VW/Audi turbocharger line sealing washer, washer bore and outer rim, repeated original gallery photo 7
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Genuine VW/Audi

N-013-851-4 Genuine VW/Audi Turbocharger Line Sealing Washer

N-013-851-4 Genuine VW/Audi Turbocharger Line Sealing Washer

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N-013-851-4

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OVERVIEW

Genuine Fluid Connection Sealing Washer

The N-013-851-4 Genuine VW/Audi sealing washer renews the seal at the matched turbocharger oil or coolant line banjo connection on the applications listed below. It is a small service part with a specific seating diameter and sealing function. This listing supplies one washer; plugs, banjo bolts, hoses and other components are separate.

Technical Details

  • OEM part number: N-013-851-4.
  • Catalog size: 12 × 18 mm; inside and outside diameter designation.
  • Application: matched turbocharger oil or coolant line banjo connection.
  • Quantity supplied: one individual sealing washer.
  • Match the complete part number, original fitting and application restrictions before ordering.

The washer seals at the mating faces when the correct fastener or plug is tightened according to the workshop procedure. A washer with a similar appearance but a different bore, outside diameter or sealing profile may not sit correctly. No material composition, hardness, thickness or shipping weight is assigned without a confirmed specification for the exact Genuine part.

Common Reasons to Replace

  • The original seal has been compressed during previous service.
  • The washer is missing, split, scored, distorted or damaged.
  • Fluid leakage has been traced to the matching sealing faces.
  • A previous repair used a washer of the wrong size or stacked multiple seals.
  • The applicable workshop procedure calls for a new sealing ring after the connection is opened.

Turbocharger or line service can disturb fluid connections sealed by these washers. Inspect each connection that is opened and select the seal specified for that location. Oil or coolant found near a turbocharger does not establish that this washer is the cause; check the line, fitting, hose and surrounding components before ordering.

Installation and Service Notes

Clean the sealing faces, inspect the mating components and place the correct washer squarely against the designated seat. Use the vehicle-specific tightening specification. Do not compensate for leakage by overtightening or adding extra washers; inspect the original connection and resolve the cause.

A banjo connection may require a seal on each side of the fitting, but the quantity and layout must follow the original diagram for the line being serviced. This listing supplies one seal, not a complete line repair kit. Restore the correct fluid level and inspect the serviced joint for leakage according to the workshop procedure.

Vehicle Fitment

The model, year and engine must match the table. These standard sealing parts can serve different locations on different vehicles; confirm the original fitting rather than choosing by model name alone.

Vehicle Model years Engine Configuration Application restrictions
Audi S4 2000–2002 2.7L twin-turbocharged V6 gasoline B5; quattro; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring this exact 12 × 18 mm seal. Confirm the specific line and fitting by VIN; other engines excluded.
Audi A6 2000–2004 2.7L twin-turbocharged V6 gasoline C5; quattro; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring this exact 12 × 18 mm seal. Confirm the specific line and fitting by VIN; other engines excluded.
Audi allroad 2001–2005 2.7L twin-turbocharged V6 gasoline C5; quattro; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring this exact 12 × 18 mm seal. Confirm the specific line and fitting by VIN; other engines excluded.
Audi A4 1997–2001 1.8L turbocharged gasoline B5; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring this exact 12 × 18 mm seal. Confirm the specific line and fitting by VIN; other engines excluded.
Audi A4 2002–2005 1.8L turbocharged gasoline B6; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring this exact 12 × 18 mm seal. Confirm the specific line and fitting by VIN; other engines excluded.
Audi A4 2006–2008 2.0L turbocharged gasoline B7; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring this exact 12 × 18 mm seal. Confirm the specific line and fitting by VIN; other engines excluded.
Audi A4 2009–2016 2.0L turbocharged gasoline B8 / B8.5; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring this exact 12 × 18 mm seal. Confirm the specific line and fitting by VIN; other engines excluded.
Audi A3 2006–2008 2.0L turbocharged FSI gasoline 8P; front-wheel drive; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring this exact 12 × 18 mm seal. Confirm the specific line and fitting by VIN; other engines excluded.
Audi A3 2009–2013 2.0L turbocharged TSI gasoline 8P; front-wheel drive or quattro; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring this exact 12 × 18 mm seal. Confirm the specific line and fitting by VIN; other engines excluded.
Audi Q3 2015–2018 2.0L turbocharged gasoline 8U; front-wheel drive or quattro; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring this exact 12 × 18 mm seal. Confirm the specific line and fitting by VIN; other engines excluded.
Audi A5 2010–2016 2.0L turbocharged gasoline B8; Coupe or Cabriolet; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring this exact 12 × 18 mm seal. Confirm the specific line and fitting by VIN; other engines excluded.
Audi Q5 2011–2017 2.0L turbocharged gasoline 8R; quattro; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring this exact 12 × 18 mm seal. Confirm the specific line and fitting by VIN; other engines excluded.
Volkswagen GTI 2006–2009 2.0L turbocharged FSI or TSI gasoline Mk5; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring this exact 12 × 18 mm seal. Confirm the specific line and fitting by VIN; other engines excluded.
Volkswagen GTI 2010–2014 2.0L turbocharged gasoline Mk6; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring this exact 12 × 18 mm seal. Confirm the specific line and fitting by VIN; other engines excluded.
Volkswagen Golf R 2012–2013 2.0L turbocharged FSI gasoline Mk6; 4Motion; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring this exact 12 × 18 mm seal. Confirm the specific line and fitting by VIN; other engines excluded.
Volkswagen CC 2009–2017 2.0L turbocharged gasoline ; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring this exact 12 × 18 mm seal. Confirm the specific line and fitting by VIN; other engines excluded.
Volkswagen Eos 2007–2015 2.0L turbocharged gasoline ; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring this exact 12 × 18 mm seal. Confirm the specific line and fitting by VIN; other engines excluded.
Volkswagen Passat 1998–2005 1.8L turbocharged gasoline B5 / B5.5; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring this exact 12 × 18 mm seal. Confirm the specific line and fitting by VIN; other engines excluded.
Volkswagen Passat 2006–2010 2.0L turbocharged gasoline B6; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring this exact 12 × 18 mm seal. Confirm the specific line and fitting by VIN; other engines excluded.
Volkswagen Tiguan 2009–2017 2.0L turbocharged gasoline First-generation; FWD or 4Motion; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring this exact 12 × 18 mm seal. Confirm the specific line and fitting by VIN; other engines excluded.
Audi TT 2000–2006 1.8L turbocharged gasoline 8N; 180 hp or 225 hp; coupe / roadster; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring N0138514. Match turbocharger and line arrangement; excludes 3.2L VR6.
Audi TTS 2009–2015 2.0L turbocharged FSI gasoline 8J; quattro; coupe / roadster; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring N0138514; verify line and fitting.
Audi allroad 2013–2015 2.0L turbocharged gasoline B8.5; quattro wagon; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring N0138514; verify line and fitting. Excludes C5 2.7L applications listed separately.
Volkswagen Jetta GLI 2006–2008 2.0L turbocharged FSI gasoline; BPY Mk5; 2008 FSI vehicles only; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring N0138514. 2008 engine transition requires original engine identification.
Volkswagen Jetta GLI 2008–2010 2.0L turbocharged TSI gasoline Mk5; 2008 TSI vehicles only; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring N0138514. 2008 engine transition requires original engine identification.
Volkswagen Jetta GLI 2012–2013 2.0L turbocharged TSI gasoline Mk6 sedan; Not restricted by transmission in source; match original fitting Original turbocharger oil or coolant banjo connection requiring N0138514; confirm original line and fitting.

Ordering Notes

Verify the full OEM part number and original sealing position by VIN. The seven-image gallery uses available original archive photos, repeated where necessary with distinct metadata. Repeated images show the same single washer and do not indicate a seven-piece package.