Engine code and why it's useful to know

[Breezy_Pete]

Most people don't know their engine code. That usually doesn't affect their lives too much, but when asking questions of a technical nature on a car forum it can be very a useful thing to be able to mention.

 

Why?  It gives a more specific, precise definition of the engine in question than any other description you might otherwise use.

 

Why is that important? 

1. Information in parts catalogues, particularly for anything even slightly engine related, is often different depending on which engine code is being looked for.

2. Information (relating to the engine at least) in factory wiring diagrams is split up into sections by engine code. If you don't know the engine code, there might be a number of different diagrams with significant differences which could lead you astray if you pick the wrong one. 

3. Questions concerning diagnosis of a fault should often vary depending on the engine code. If you have a 1.2 litre 3-cylinder petrol engine for example, it might have an EGR valve if it has certain engine codes, and not if it has others. It is very likely to even have a different number of camshafts and valves depending on which code. EGR faults are very rare on cars that don't have one! 

4. If you know your engine code, you can put it into ebay as a search term (e.g. "AZQ engine") and you will see listings of ones for sale.  These can be very useful for finding things on the engine or working out how to get to them, as they often include good photos from several angles of engines on pallets, with varying numbers of ancillary items fitted.  Much easier to see what's what than from more or less any angle while the engine is in the engine bay.

 

How and where can I find this code? 

 

On cars up until about 2018, there tended to be a paper sticker on the boot floor, often near the spare wheel well. Duplicate could often found at the front of the service book.

That includes a certain amount of info about the vehicle, including engine (and gearbox) codes, paint code, all sorts. Example (engine code in red square, gearbox code in blue):

 

Many cars also have a barcode sticker on the upper cambelt cover, like this one:

 

The engine code is the letters (in yellow box) just ahead of the engine number:

 

See also Nige's reply below about finding the engine code on your V5c. Letters ahead of the engine number.

 

Consider adding this engine code to any info you may have already put in your profile and or signature, and keep it updated if you change cars.

 

 

Edited 27 November, 2021 by Wino

[Carlston]

VW Codes Decoded

E0A = No special edition
1N2 = Power steering electro-hydraulic
4A0 = Without seat heater
7Q0 = Without navigation device
3L2 = Manual height adjustment for right frontseat
QG0 = Without service interval prolongation
1D0 = Without trailer hitch
1NH = Full wheel covers
8L3 = Roof antenna
8UE = Radio with CD drive
9P0 = Without seat belt reminder
0GG = Emission standard EU4
5SJ = Left exterior mirror: convex
H2Z = Tires 185/60 R14 T
J1P = Battery 220 A (44 Ah)
8QJ = Key for locking system with remote control
Q1A = Standard front seats
L03 = Suspension range 03 installation control only, no requirement forecast
5RV = Right exterior mirror: aspherical
4UE = Air bag for driver and front seat passenger
7AA = Electronic vehicle immobilization device
8X0 = Without headlight washer system
7X0 = Without park distance control
7P0 = Without lumbar support in seat backrests
1KM = Drum brakes, rear
4R2 = Power windows front, mechanical window regulators rear
8GD = Alternator 90A
4K3 = Radio remote controlled central locking operated from inside and safe securing
9W0 = W/o car phone preparation/installation
F0A = No special purpose vehicle, standard equipment
6FB = Body-colored exterior mirror housings
B09 = Type approval Great Britain and NorthernIreland
6Y0 = Without cruise control warning system
B09 = Type approval Great Britain and NorthernIreland
8WB = Front fog lights
1AN = Anti-lock brake system (ABS)
3QT = 3-point seat belts with tensioner and height adjustment, front
9AP = Climatic air-conditioning system (semi-automatic)
G01 = Front shock absorption
7A0 = Without CD changer/CD player
3S4 = Preparation for roof load rack
3FA = Without roof insert (standard roof)
4X0 = Without side air bag
8RM = 8 speakers (passive)
QN0 = Without drawers under front seats

 

VW Codes Decoder

http://igorweb.org/equidec.aspx

 

Front Springs G01, L03

(1)

6Q0411105AE

coil spring 3 paint marks 2 paint marks

red blue Model data: PR-G01/L03 PR-G02/L03

 

Front Shock Absorbers G01

8

6Q0413031BH

shock absorbers

Model data: PR-G01,G05

 

http://www.oemepc.com/skoda/part_single/catalog/sk/markt/CZ/modell/FAB/year/2005/drive_standart/453/hg_ug/411/subcategory/411000/part_id/2561497/lang/e

 

Skoda Fabia MK1 Engines

Model	Years	Engine and code		Displ.	Power	Torque
Petrol
1.0 8V	1999–2000	I4	AQV/ATY/ARV	997 cc	37 kW (50 PS; 50 hp) at 5000 rpm	84 N⋅m (62 lb⋅ft) at 2750 rpm
1.2 MPI 6V	2001–2003	I3	AWY/BMD	1198 cc	40 kW (54 PS; 54 hp) at 4750 rpm	108 N⋅m (80 lb⋅ft) at 3000 rpm
1.2 HTP 6V	2003–2007	I3	AWY/BMD	1198 cc	40 kW (54 PS; 54 hp) at 4750 rpm	108 N⋅m (80 lb⋅ft) at 3000 rpm
1.2 HTP 12V	2003–2007	I3	AZQ/BME	1198 cc	47 kW (64 PS; 63 hp) at 5400 rpm	112 N⋅m (83 lb⋅ft) at 3000 rpm
1.4 MPI	2000–2003	I4	AZE/AZF	1397 cc	44 kW (60 PS; 59 hp) at 5000 rpm	118 N⋅m (87 lb⋅ft) at 2600 rpm
1.4 MPI	1999–2003	I4	AME/AQW/ATZ	1397 cc	50 kW (68 PS; 67 hp) at 5000 rpm	120 N⋅m (89 lb⋅ft) at 2500 rpm
1.4 16V	2000–2007	I4	APE/AUA/BBY/BKY	1390 cc	55 kW (75 PS; 74 hp) at 5000 rpm	126 N⋅m (93 lb⋅ft) at 3800 rpm
1.4 16V	2006–2007	I4	BUD	1390 cc	59 kW (80 PS; 79 hp) at 5000 rpm	132 N⋅m (97 lb⋅ft) at 3800 rpm
1.4 16V	1999–2007	I4	AUB/BBZ	1390 cc	74 kW (101 PS; 99 hp) at 6000 rpm	126 N⋅m (93 lb⋅ft) at 4400 rpm
2.0 8V	1999–2000	I4	ATF	1984 cc	88 kW (120 PS; 118 hp) at 5600 rpm	174 N⋅m (128 lb⋅ft) at 2400 rpm
2.0 8V	2000–2007	I4	AZL/BBX	1984 cc	85 kW (116 PS; 114 hp) at 5200 rpm	170 N⋅m (130 lb⋅ft) at 2400 rpm
Diesel
1.4 TDI 6V	2005–2007	I3	BNM	1422 cc	51 kW (69 PS; 68 hp) at 4000 rpm	155 N⋅m (114 lb⋅ft) at 1600–2800 rpm
1.4 TDI 6V	2003–2005	I3	AMF	1422 cc	55 kW (75 PS; 74 hp) at 4000 rpm	195 N⋅m (144 lb⋅ft) at 2200 rpm
1.4 TDI 6V	2005–2008	I3	BNV	1422 cc	59 kW (80 PS; 79 hp) at 4000 rpm	195 N⋅m (144 lb⋅ft) at 2200 rpm
1.9 SDI 8V	1999–2006	I4	ASY	1896 cc	47 kW (64 PS; 63 hp) at 4000 rpm	125 N⋅m (92 lb⋅ft) at 1600–2800 rpm
1.9 TDI PD 8V	2000–2007	I4	ATD/AXR	1896 cc	74 kW (101 PS; 99 hp) at 4000 rpm	240 N⋅m (177 lb⋅ft) at 1800–2400 rpm
1.9 TDI PD 8V RS	2003–2007	I4	ASZ/BLT	1896 cc	96 kW (131 PS; 129 hp) at 4000 rpm	310 N⋅m (229 lbf⋅ft) at 1900 rpm

 

https://en.wikipedia.org/wiki/Škoda_Fabia#Engines

 

Edited 1 October, 2021 by Carlston

[Breezy_Pete]

I have the full car data pdf for that car thanks Carlston. 
This thread was intended to be general, for all readers, not about my partners car, nor mk1 Fabias, both of which are well known to me.

Thanks for your efforts though.

[Carlston]

53 minutes ago, Wino said:

I have the full car data pdf for that car thanks Carlston. 
This thread was intended to be general, for all readers, not about my partners car, nor mk1 Fabias, both of which are well known to me.

Thanks for your efforts though.

 

The purpose was to add links to show where to find information, such as "vw codes decoder", "vw online parts catalogue", "wikipedia".

 

I simply used the AZQ engined Fabia MK1 as an example.

 

However, it's sounds like a great engine. I like the fact that maximum torque is produced from quite low revs, ie. 3,000rpm.

 

It's a shame VW/Skoda didn't increase the size of the 3 cylinder engine to 1,350cc, ie. 450cc per cylinder for 72PS@5,400rpm and 126Nm@3,000rpm which is a 12.5% increase in power and torque from the 1,200cc engine. The 126Nm of torque is similar to the 125Nm of torque that the old 1.9SDI engine produced in the Fabia MK1, although the 1.9SDI engine produced its maximum torque from a lower 1,600rpm to 2,800rpm. As you will see in the wikipedia engine chart above, the 1.9SDI engine had the engine code ASY.

 

Edited 1 October, 2021 by Carlston

[Breezy_Pete]

It is a fun thing to drive, suits the car well I think. I've no experience of driving diesels.  🙂

[nige8021]

If the data sticker is missing from the boot/service book and there is no sticker on the cambelt cover, on UK cars the code can be found on the V5 vehicle logbook, the letters at the start of the engine serial number are the engine code.

[Black_Thunder]

You can also ask at TPS to give a full printout of all PR codes installed for a given VIN - and this list is considerably larger than the limited selection of PR codes on the data sticker in the boot or service book

[Brissy]

Some great info being posted, thanks it all helps use fix issues easier. 
 

can some one please suggest a engine code reader I should look at using, I have a Octavia RS 2012 MK1

[Breezy_Pete]

@Brissy, engine code is an identifier of the precise variety of engine in a given car. Not the same as fault code, which is what you seem to be asking about.

 

I would recommend asking in the more relevant section of the forum, here: Diagnostics & VCDS - BRISKODA

Edited 18 June, 2023 by Breezy_Pete