106 EGR gasket for VW, Audi, Škoda SEA 1.7, 1.9, 2.0 SDI

Application:

SEAT
AROSA (6H1) 1.4 TDI 55 KW 1422 CCM 75PS 2000/01–2004/06
SEAT AROSA (6H1) 1.7 SDI 44 kW 1,716 cc 60 PS August 1997–June
2004 SEAT CORDOBA (6K1, 6K2) 1.9 SDI 50 kW 1,896 cc 68 PS 1999/06–2002/10
SEAT CORDOBA (6L2) 1.9 SDI 47 kW 1,896 cc 64 PS September 2002–November 2009
SEAT CORDOBA Vario (6K5) 1.9 SDI 50 kW 1,896 cc 68 PS June 1999–December
2002 SEAT IBIZA II (6K1) 1.9 SDI 50 kW 1,896 cc 68 PS August 1999–February 2002
SEAT IBIZA III (6L1) 1.9 SDI 47 kW 1,896 cc 64 PS Feb 2002–Dec 2005
SEAT INCA (6K9) 1.9 SDI 47 kW 1,896 cc 64 PS 1995/11–2003/06
SEAT LEON (1M1) 1.9 SDI 50 kW 1,896 cc 68 PS 11/1999–06/2006
SEAT LEON (1M1) 1.9 TDI 66 kW 1,896 cc 90 PS 11/1999–06/2006
SEAT TOLEDO II (1M2) 1.9 TDI 66 kW 1,896 cc 90 PS March 1999–July
2004

SKODA
SKODA FABIA I (6Y2) 1.9 SDI 47 kW 1,896 cc 64 PS Dec 1999–Mar
2008 SKODA FABIA I Combi (6Y5) 1.9 SDI 47 kW 1,896 cc 64 PS April 2000–December
2007 SKODA FABIA I Praktik (6Y5) 1.9 SDI 47 kW 1,896 cm³ 64 PS July 2001–December 2007
ŠKODA FABIA I Sedan (6Y3) 1.9 SDI 47 kW 1,896 cc 64 PS 11/1999–12/2007
ŠKODA OCTAVIA I (1U2) 1.9 SDI 50 kW 1,896 cc 68 PS June 1997–December 2003
ŠKODA OCTAVIA I Combi (1U5) 1.9 SDI 50 kW 1,896 cc 68 PS July 1998–December
2003

Volkswagen
VW BORA I (1J2) 1.9 SDI 50 kW 1,896 cc 68 PS Oct 1998–May 2005
VW CADDY II Full-size body/minivan (9K9A) 1.9 SDI 47 kW 1,896 cc 64 PS 11/1995–01/2004
VW CADDY II High-capacity body (MPV) (9K9B) 1.9 SDI 47 kW 1,896 cc 64 PS 1995/11–2004/01
VW CADDY III Full-size body/minivan (2KA, 2KH, 2CA, 2CH) 2.0 SDI 51 kW 1,968 cc 70 PS March 2004–August
2010 VW CADDY III spacious body (MPV) (2KB, 2KJ, 2CB, 2.0 SDI 51 kW 1,968 cc 70 PS Mar 2004–Aug 2010
VW GOLF IV (1J1) 1.9 SDI 50 kW 1,896 cc 68 PS 1997/08–2005/06
VW GOLF IV Variant (1J5) 1.9 SDI 50 kW 1,896 cc 68 PS May 1999–June 2006
VW LUPO I (6X1, 6E1) 1.7 SDI 44 kW 1,716 cc 60 PS September 1998–July
2005 VW Polo (6N2) 1.7 SDI 44 kW 1,716 cc 60 PS Oct 1999–Sep
2001 VW POLO (6N2) 1.9 SDI 47 kW 1,896 cc 64 PS 1999/10–2001/09
VW POLO (9N_) 1.9 SDI 47 kW 1,896 cc 64 PS Oct 2001–Nov 2009
VW Polo III (6N1) 60 1.7 SDI 44 kW 1,716 cc 60 PS August 1997–October 1999
VW Polo III Classic (6V2) 57 1.7 SDI 42 kW 1,715 cc 57 PS July 1997–September 2001
VW Polo III Classic (6V2) 68 1.9 SDI 50 kW 1,896 cc 68 PS August 1999–January 2002
VW Polo IV Sedan (9A4, 9A2, 9N2, 9A6) 1.9 SDI 47 kW 1,896 cc 64 PS 2002/09–2012/04
VW POLO Variant (6V5) 1.7 SDI 42 kW 1,715 cc 57 PS August 1997–September 2001
VW Polo Variant (6V5) 1.9 SDI 50 kW 1,896 cc 68 PS August 1999–September 2001

Engine codes: AMF, AKU, ASY, AEY, AYQ, AQM, AGP, ALH, AGR, AGD, ASX, AKW, BDJ, BST

Technical

Specifications:


Gasket material: GAMBIT AF-1000, a material with exceptionally high strength properties, resistant to all conditions found in the exhaust system.

Aditech Sp. z o.o. assumes no liability for the use of this part on public roads where the removal of emission control devices is prohibited. It is the customer’s responsibility to ensure compliance with the rules and regulations applicable in their home country. For use in motorsports off public roads.

The AT-USZ-106 EGR gasket seals the connection between the EGR valve and the exhaust system. It is made of GAMBIT AF-1000 material and is 1 mm thick.

What is the EGR gasket used for in the 1.9 TDI, and where does it fit?

The EGR gasket in the 1.9 TDI engine seals the flange joint and reduces exhaust blow-by. The 1 mm-thick gasket is thin but rigid, so it does not bend during installation and retains its shape after tightening.

The gasket fits select 1.7, 1.9, and 2.0 SDI engines, as well as specific versions of the 1.9 TDI. The surest way to confirm compatibility is to check the engine code and flange shape, as the model name alone is not always sufficient.

Confirmed applications include:

• SEAT Leon 1M1 1.9 TDI 66 kW 11/1999–06/2006 and Toledo II 1M2 1.9 TDI 66 kW 03/1999–07/2004
• Volkswagen Golf IV, Golf IV Variant, and Bora I in 1.9 SDI versions
• Volkswagen Polo, Caddy II, Lupo, Polo Variant, Polo III Classic, and Caddy III 2.0 SDI
• Škoda Fabia I and Octavia I, as well as Seat Arosa, Cordoba, Ibiza II and III, Inca, Leon, and Toledo II

Engine codes include AMF, AKU, ASY, AEY, AYQ, AQM, AGP, ALH, AGR, AGD, ASX, AKW, BDJ, and BST.

How can you tell if the EGR valve gasket is worn out, and how do you replace it?

A damaged EGR gasket usually leaves soot on the joint, causes a hissing sound after the engine warms up, and produces a noticeable exhaust odor under the hood. In the 1.9 TDI engine, such a leak is sometimes mistaken for a malfunction of the EGR valve itself.

Replacement is simple if the bolts aren’t seized and the sealing surfaces don’t have pitting. The safe procedure is as follows:

1. Unscrew the EGR valve mounting bracket and remove the old gasket.
2. Clean both sealing surfaces—that is, the contact points—of carbon deposits and check that they are flat.
3. Install the new gasket dry, without silicone, and tighten the connection evenly.

If the specific model also includes an EGR O-ring, its condition must be checked separately, as a flat gasket does not replace a round seal.

What specifications should you check before purchasing?

When selecting a gasket, it’s worth paying attention to four factors. A thickness of 1 mm helps maintain proper clamping force, and the GAMBIT AF-1000 material withstands the operating conditions in the exhaust system well.

Before ordering and installing, it’s a good idea to:

• compare the engine code with the list: AMF, AKU, ASY, AEY, AYQ, AQM, AGP, ALH, AGR, AGD, ASX, AKW, BDJ, BST
• check whether the gasket’s shape matches the EGR valve flange
• ensure that the 1 mm thickness matches the part being replaced
• assess the flatness of the mating surfaces, as a connection will still leak if the flange is warped

The gasket is intended for off-road sports use. Removal of emission control components from vehicles operating on public roads is prohibited.

FAQ

What material is this gasket made of, and what is its thickness?

The gasket is made of GAMBIT AF-1000 material with a thickness of 1 mm, which ensures rigidity during installation and resistance to operating conditions in the exhaust system.

Which models and engine codes is the AT-USZ-106 compatible with?

It fits select 1.7, 1.9, and 2.0 SDI engines, as well as specified versions of the 1.9 TDI. The article lists, among others, the SEAT Leon/Toledo, VW Golf IV, Polo, Caddy, Škoda Fabia/Octavia, and codes AMF, ALH, AGR, and others.

What are the symptoms of an EGR valve gasket leak, and how do you replace it?

Symptoms: soot when starting, a hissing sound after the engine warms up, and the smell of exhaust fumes. Replacement: unscrew the mounting bolt, remove the old gasket, clean the mating surfaces, install the new gasket without adhesive, and tighten evenly; check the O-ring.