Fits: 2012–2013, 2017–2018 Audi A3 2012–2018 Audi A4 2012–2018 Audi A4 Quattro 2012–2014 Audi A5 2012–2019 Audi A5 Quattro 2012–2018 Audi Q5 2012–2018 Audi TTS Quattro 2012–2018 Audi TT Quattro 2012–2013, 2018 Audi TT RS Quattro 2012–2013, 2015–2018 Audi A3 Quattro 2014–2018 Audi SQ5 2015–2018 Audi Q3 2015–2018 Audi Q3 Quattro 2017–2018 Audi A3 Sportback e-tron 2017–2018 Audi A4 allroad 2018–2019 Audi A5 Sportback Cometic GasketC4978-056Head GasketsComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.036". World Products Man-o-War Block. Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flour elastomer rubber based material that is heat resistant to 250 C/ 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements.
