Where to find your engine code:Under the plastic engine cover (Undo the four screws) Left hand side below the oil filler cap:
It will also be in the boot left hand side on a white sticker (Under the carpet with the spare wheel)
And in most cases on a white sticker in the front of the vehicle hand book.
Petrol Engine Codes:
1.4 AHW / AXP / AKQ / APE / AUA / BCA
I4 DOHC 16V 1.4 L (1390 cc) 75 PS (74 hp/55 kW) @ 5,000 rpm 126 N·m (93 ft·lbf) @ 3,300 rpm 1997-2006
1.6 AEH / AKL / APF
I4 SOHC 8V 1.6 L (1595 cc) 100 PS (99 hp/74 kW) @ 5,600 rpm 145 N·m (107 ft·lbf) @ 3,800 rpm 1997-2000
1.6 AVU / BFQ
I4 SOHC 8V 1.6 L (1595 cc) 102 PS (101 hp/75 kW) @ 5,600 rpm 148 N·m (109 ft·lbf) @ 3,800 rpm 2000-2006
1.6 AUS / AZD / ATN / BCB
I4 DOHC 16V 1.6 L (1598 cc) 105 PS (104 hp/77 kW) @ 5,700 rpm 148 N·m (109 ft·lbf) @ 4,500 rpm 2000-2006
1.6 FSI BAD I4 DOHC 16V
with GDI injection 1.6 L (1598 cc) 110 PS (108 hp/81 kW) @ 5,800 rpm 155 N·m (114 ft·lbf) @ 4,400 rpm 2002-2006
1.8 AGN
I4 DOHC 20V 1.8 L (1781 cc) 125 PS (123 hp/92 kW) @ 6,000 rpm 170 N·m (125 ft·lbf) @ 4,200 rpm 1997-1999
1.8 T AGU / ARZ / ARX / AUM
I4 DOHC 20V
Turbocharged 1.8 L (1781 cc) 150 PS (148 hp/110 kW) @ 5,700 rpm 210 N·m (155 ft·lbf) @ 1,750 rpm 1997-2006
1.8 T AUQ / AWP
I4 DOHC 20V
Turbocharged 1.8 L (1781 cc) 180 PS (178 hp/132 kW) @ 5,500 rpm 235 N·m (173 ft·lbf) @ 1,950 rpm 2001-2006
1.8 T APP
Application: A3, TT, Leon Cupra
Model Year: 99-00
Standard Power: 180BHP
Mounted: Transverse
Compression Ratio: 9.5:1
Turbo: K03
2.0 APK / AQY
I4 SOHC 8V 2 L (1984 cc) 115 PS (113 hp/85 kW) @ 5,200 rpm 170 N·m (125 ft·lbf) @ 2,400 rpm 1999-2001
2.0 AZJ
I4 SOHC 8V 2 L (1984 cc) 115 PS (113 hp/85 kW) @ 5,200 rpm 172 N·m (127 ft·lbf) @ 3,200 rpm 2001-2006
2.0 4Motion AZH
I4 SOHC 8V 2 L (1984 cc) 115 PS (113 hp/85 kW) @ 5,400 rpm 172 N·m (127 ft·lbf) @ 3,200 rpm 2001-2006
2.3 VR5 AGZ
VR5 SOHC 10V 2.3 L (2324 cc) 150 PS (148 hp/110 kW) @ 6,000 rpm 205 N·m (151 ft·lbf) @ 3,200 rpm 1997-2000
2.3 V5 AQN
VR5 DOHC 20V 2.3 L (2324 cc) 170 PS (168 hp/125 kW) @ 6,200 rpm 220 N·m (162 ft·lbf) @ 3,300 rpm 2000-2006
2.8 VR6 AAA / AFP
VR6 DOHC 12V 2.8 L (2792 cc) 174 PS (172 hp/128 kW) @ 5,800 rpm 235 N·m (173 ft·lbf) @ 4,200 rpm 1999-2002
2.8 VR6 AQP / AUE / BDE
VR6 DOHC 24V 2.8 L (2792 cc) 204 PS (201 hp/150 kW) @ 6,000 rpm 270 N·m (199 ft·lbf) @ 3,200 rpm 2002-2006
3.2 R32 BFH
VR6 DOHC 24V 3.2 L (3189 cc) 241 PS (238 hp/177 kW) @ 6,250 rpm 320 N·m (236 ft·lbf) @ 2,800 rpm 2002-2004
BHP at a glance2.0 - 115bhp
1.8 - 125bhp
1998 - 2002 1.8T - 150bhp
2002(late) & 2003 1.8T - 180bhp
1.8T Power and engine info:
Small port head engine codes : ADR,BAM,AUM,ARZ,APT,APU,ARG,ATW,AWM,AWP,BEA.
Large port size head engine codes ( Typically 97-99) : AGU,AEB,AFY
From 98 - 2000 the engines had the k03 turbo. 150 BHP and cable throttle (AGU) (and ARZ which is Drive By Wire)
(W plate cars registered from May/June 2000 came with the ARZ engine which is DBW - only for around 5 months before the AUMs started to appear in Nov/Dec 2000)
From 2000 on thay had k03s VVT 150 BHP and drive by wire ( AUM )
From 2002 on thay had 180 bhp (same as 2000 on with different ECU map) standard and 6 speed box. ( AUQ / AWP ) also drive by wire.
http://www.qpeng.com/faqs/engine_faqs/all_these_engine_codes_can_you_explain_what_they_mean.htmlBoost pressure:
AUM (150bhp) - 0.6bar / 8.7psi
AUQ (180bhp) - 0.8bar / 11.6psi
1bar = 14.508psi
Diesel engine codes:
1.9 SDI AGP / AQM
I4 SOHC 8V SDI 1.9 L (1896 cc) 68 PS (67 hp/50 kW) @ 4,200 rpm 133 N·m (98 ft·lbf) @ 2,200 rpm 1997-2006
1.9 TDI AGR / ALH
I4 SOHC 8V TDI
with electronically
controlled
distributor-type
injection pump
1.9 L (1896 cc) 90 PS (89 hp/66 kW) @ 3,750 rpm 210 N·m (155 ft·lbf) @ 1,900 rpm 1997-2002
1.9 TDI ATD / AXR
I4 SOHC 8V TDI
with unit injectors 1.9 L (1896 cc) 100 PS (99 hp/74 kW) @ 4,000 rpm 240 N·m (177 ft·lbf) @ 1,800 rpm 2000-2006
1.9 TDI AHF / ASK / ASV
I4 SOHC 8V TDI
with electronically
controlled
distributor-type
injection pump
1.9 L (1896 cc) 110 PS (108 hp/81 kW) @ 4,150 rpm 235 N·m (173 ft·lbf) @ 1,900 rpm 1997-2002
1.9 TDI AJM
I4 SOHC 8V TDI
with unit injectors 1.9 L (1896 cc) 115 PS (113 hp/85 kW) @ 4,000 rpm 285 N·m (210 ft·lbf) @ 1,750 rpm 1999-2001
1.9 TDI AUY
I4 SOHC 8V TDI
with unit injectors 1.9 L (1896 cc) 115 PS (113 hp/85 kW) @ 4,000 rpm 310 N·m (229 ft·lbf) @ 1,900 rpm 2000-2002
1.9 TDI ASZ
I4 SOHC 8V TDI
with unit injectors 1.9 L (1896 cc) 130 PS (128 hp/96 kW) @ 4,000 rpm 310 N·m (229 ft·lbf) @ 1,900 rpm 2001-2006
1.9 TDI ARL
I4 SOHC 8V TDI
with unit injectors 1.9 L (1896 cc) 150 PS (148 hp/110 kW) @ 4,000 rpm 320 N·m (236 ft·lbf) @ 1,900 rpm 2000-2003