How to Replace timing chain on Audi A5 (8T) 2.0 TFSI 2009

Audi A5 (8T) 2.0 TFSI 2009 timing chain change instructions and replacement inteval. Full guide!

Special tools

• Camshaft adjuster control valve removal tool – No.T10352.
• Camshaft adjuster control valve removal tool – No.T10352/1.
• Crankshaft pulley holding tool – No.T10355.
• Dial gauge – No.VAS 6079.
• Dial gauge adapter – No.T10170A/1.
• Tensioner locking pin – No.T40011.
• Tensioner locking tool – No.T40267.

Special precautions

• Disconnect battery earth lead.
• Remove spark plugs to ease turning engine.
• Turn engine in normal direction of rotation (unless otherwise stated).
• Observe tightening torques.
• If fitted: Mark position of crankshaft position (CKP) sensor before removal.
• Do NOT turn crankshaft via camshaft or other sprockets.
• Do NOT turn crankshaft or camshaft with timing chain removed.

Valve timing procedures

• Engine at TDC on No.1 cylinder.
• Install dial gauge and adapter in No.1 cylinder plug hole [1] .
• Turn crankshaft slowly to TDC on No.1 cylinder. Use dial gauge [1] .
• Ensure crankshaft pulley timing mark aligned with timing mark on chain cover [2] .

WARNING: Crankshaft sprocket not keyed to crankshaft. Ensure crankshaft sprocket timing marks aligned [3]<1>.

• Refit crankshaft pulley bolt with spacer.
• Remove inlet camshaft adjuster control valve (LH thread) [5] .
• Remove exhaust camshaft sprocket bolt and washer [4] .
• Remove camshaft support bracket [6] .
• Ensure camshaft sprocket timing marks aligned [7] .
• Ensure coloured or painted chain links aligned with timing mark on each camshaft sprocket [7] .
• Ensure balancer shaft timing marks aligned [8] .
• Ensure balancer shaft gear timing marks aligned [9] .
• Ensure crankshaft sprocket timing marks aligned [10] & [11] .
• Reset tensioner:
• Type A [12] :
  • Release locking mechanism using a suitable tool [13] .
  • Push plunger into tensioner housing [14] .
  • Insert tensioner locking pin [15] .
• Type B [16] :
  • Release tensioner plunger retaining clip [17] .
  • Push plunger into tensioner housing [18] .
  • Insert tensioner locking tool [19] .
• Remove tensioner locking tool or pin to release timing chain tensioner plunger [15] or [19] .
• Tighten exhaust camshaft sprocket bolt [4] .
• Turn crankshaft two turns clockwise.
• Ensure engine at TDC on No.1 cylinder. Use dial gauge [1] .
• Ensure timing mark on each camshaft sprocket positioned as shown [7] .
• Check measurement between outer edge of raised cast section on upper chain guide and timing mark on inlet camshaft adjuster is 61-64 mm [20] & [21] .

NOTE: If measurement outside tolerance, repeat timing chain installation procedure.

• Check measurement between inlet camshaft adjuster timing mark and exhaust camshaft sprocket timing mark is 124-126 mm [22] .

NOTE: If measurement outside tolerance, repeat timing chain installation procedure.