Audi A5 (8T) 2.0 TFSI 2009 timing chain change instructions and replacement interval. 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.
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