A3 1.9 TD 6 Speed

Audi A3 1.9 TD with a 6-speed gearbox, which typically points to the 1.9 TDI engine found in Audi A3 (8L or 8P generation) models, paired with a 6-speed manual transmission.

Here’s a breakdown of that setup:

🔧 Audi A3 1.9 TDI – 6-Speed Overview

Spec	Details
Engine Type	1.9L Turbo Diesel
Common Engine Codes	ASZ, AJM, ARL, BXE, BKC, BLT, ALH
Fuel System	Direct Injection / Pumpe-Düse (PD)
Power Output	Ranges from 90 hp (66 kW) to 130 hp (96 kW)
Torque	Up to 310 Nm (on ARL/ASZ)
Turbo	VNT (variable geometry turbo) on higher outputs
Gearbox	6-speed manual (commonly MQ350 or MQ250 series, depending on torque spec)
Drivetrain	FWD (some 4Motion on special trims)
Years Used	Approx. 1999–2008 (8L late and 8P early models)
Vehicles	Audi A3, VW Golf 4 & 5, Seat Leon, Skoda Octavia

🔩 Common 1.9 TDI Engine Variants with 6-Speed Gearboxes

Engine Code	Power	Notes
ASZ	130 hp	Strong PD130 engine, commonly paired with 6-speed
ARL	150 hp	Found in Golf GT TDI / A3 sport versions
BXE / BKC	105 hp	Common in later A3 8P, reliable but lower torque
BLT	105 hp	Euro 4, PD injector type
AJM	115 hp	Early PD variant

⚙️ Gearbox Options (6-Speed)

Gearbox Code	Type	Max Torque
02M / MQ350	Manual	Up to 350 Nm – for PD130/150
02J / MQ250	Manual	Up to 250 Nm – for PD100/105
02Q	Later A3 8P platform	Paired with PD and CR engines
02S	FWD 6-speed (lighter duty)	Some BLT/BKC applications

✅ Common Upgrades or Swaps

PD130 (ASZ) or PD150 (ARL) swap into A3 8L/8P chassis is popular
Gearbox swap to MQ350 allows for higher torque tuning
Turbo upgrades: GT1749VA/GTB series for more power
ECU remapping easily boosts to 160–180+ hp reliably

🔍 What to Check When Buying/Sourcing

Check	Reason
🔧 Engine Code (on block or VIN label)	Confirms compatibility and power
⚙️ Gearbox Code (on housing)	Ensures torque capacity and proper gearing
🛠️ Dual Mass Flywheel Condition	Common wear point in 1.9 TDIs
🚫 Injector Condition (on PD engines)	Costly to replace if damaged
🧪 Turbo & EGR wear	Early signs of power loss or smoke