Diesel Particulate Filter: Reading Out Ash Deposit Volume - Audi A8 2003 Maintenance Manual

Plenum chamber and water drains: checking for dirt
⇒ page 101
Toothed belt for camshaft drive and tensioning roller: renewing
⇒ page 108
Toothed belt for camshaft drive: renewing
Spark plugs: renewing
3.1 Diesel particulate filter: reading out ash
deposit volume
Table of test values and procedure guidelines:
Engine
6-cyl. diesel engine 3.0 ltr. TDI com‐
mon rail
8-cyl. diesel engine 4.0 ltr. TDI/
4.2 ltr. TDI
Procedure:
– Connect vehicle diagnostic tester
– Select mode and begin diagnosis.
Diagnosis
– Perform vehicle identification.
– De-select "Working with Guided Fault Finding" by removing
and press
v Apply
– Continue to follow instructions on screen.
– Switch to "Control units" tab.
– Select control unit "01 — Engine electronics" and carry out
following functions via right mouse button:
♦ Identify control unit
♦ Guided Functions
♦ 01 - Read measured values
– Select desired measured value (see table of test values and
procedure guidelines
ing with .
OK
– Evaluate measured value and follow further instructions on
screen.
– Perform the following measures according to the measured
value:
Result:
Measured value < critical
value
Measured value ≥ critical
value
⇒ page 108
⇒ page 76
Measured value designation for di‐
agnostic tester
Measured value block 104/zone 1 Oil ash deposit volume: 460 ml
Exhaust bank 1: Measured value
block 105/zone 1
Exhaust bank 2: Measured value
block 106/zone 1
⇒ page 14
.
⇒ page 19 ) by entering
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Measure:
Vehicle can be driven for a further 30,000 km (19,000 miles).
Renew diesel particulate filter and reset measured value to zero ⇒ Rep. gr. 26 ;
Removing and installing parts of exhaust system - vehicles with particulate filter;
Removing and installing particulate filter with main catalytic converter .
Maintenance - Edition 06.2014
.
and confirm‐
v
Audi A8 2003 ➤
Maximum value for ash deposit
Oil ash deposit volume: 760 ml
3. Maintenance
19