Volkswagen has released a series of 1.6 liter engines, each with its own unique features and specifications. Below is a table of the specifications of these engines.
E EA113 engine characteristics
| Characteristics | VW AZD 1.6 16V | VW BCB 1.6 16V | VW BTS 1.6 16V |
|---|---|---|---|
| Exact displacement | 1598 cm³ | 1598 cm³ | 1598 cm³ |
| Power system | injector | injector | injector |
| Power | 105 hp | 105 hp | 105 hp |
| Torque | 148 Nm | 148 Nm | 153 Nm |
| Cylinder block | cast iron R4 | cast iron R4 | aluminum R4 |
| Block head | aluminum 16v | aluminum 16v | aluminum 16v |
| Cylinder diameter | 76.5 mm | 76.5 mm | 76.5 mm |
| Piston stroke | 86.9 mm | 86.9 mm | 86.9 mm |
| Compression ratio | 11.5 | 11.5 | 10.5 |
| Engine Features | DOHC | DOHC | DOHC |
| Hydrocompensators | yes | yes | yes |
| Transmission timing | two belts | belt | chain |
| Fasor regulator | no | no | on inlet |
| Turbocharger | no | no | no |
| Oil | 4.0 liter 5W-30 | 4.0 liter 5W-30 | 3.6 liter 5W-30 |
| Environmental class | EURO 4 | EBRO 4 | EURO 4 |
| Example life | 320,000 km | 330,000 km | 300,000 km |
| Engine weight | 117 kg | 117 kg | 107 kg |
Motor installed
- VW Golf 4
- VW Polo
- VW Bora
- Skoda Fabia
- Skoda Roomster
- SEAT Cordoba
- SEAT Ibiza
- SEAT Leon
- SEAT Toledo
Reliability and repair of engines AZD, BTS, BCB
In 1999, a new 1.6-liter engine of EA113 series, which received the designation ATN, appeared on the Golf 4. It had a cast-iron cylinder block, inside which a crankshaft with a piston stroke of 86.9 mm is installed, and the cylinder diameter is 76.5 mm, piston height is 29.3 mm.
The block is covered by a 16-valve head with two camshafts. The size of the intake valves is 29.5 mm, the exhaust valves 26 mm, and the stem thickness is 6 mm. The camshafts rotate by means of the timing belt, belt replacement is necessary after every 90 thousand kilometers.
This motor is equipped with distributed fuel injection and Magneti Marelli 4LV control unit. In terms of ecology this motor corresponds to the German class D4.
In 2000, a version of the AUS engine was released, which is characterized by compliance with the Euro 4 environmental class.
In the same year, a version with other ignition coils and plugs was released, the name of this engine is AZD. It also meets Euro 4 standards and has a Magneti Marelli 4MV ECU.
A year later there was a motor with a different catalytic converter, the name of the motor is BCB.
In 2003, the Golf 5 appeared, where the 16-valve 1.6-liter motors began to be replaced by 1.6 FSI engines, called BAD and BLF.
In 2005, the series of 16-valve distributed injection engines moved to lower class cars: VW Polo, Skoda Fabia, Skoda Roomster, SEAT Cordoba, SEAT Ibiza. There this motor was changed, cast iron cylinder block gave way to aluminum, compression ratio decreased to 10.5, there was a phase shifter on the inlet, timing drive became chain and the motor received a control unit Bosch Motronic ME 7.5.20. The name of this engine – BTS.
On the basis of these motors were produced 1.4-liter EA113: AHW, AUA, BBY, BKY, BUD, BCA, AXP, AKQ, BXW and others.
In 2010, BTS motors were discontinued and instead of them began to put the famous CFNA.
Disadvantages and problems of EA113 engines
In each model there are characteristic problems and weaknesses. The table below summarizes the main disadvantages of these engines.
| Problem/Disadvantage | VW AZD | VW BCB | VW BTS |
|---|---|---|---|
| Detonation | Detonated on AI-92 | Recommended AI-95 and AI-98 | Not noted |
| Floating RPMs | Dirt on throttle | Dirt on throttle or EGR valve | Dirt on the throttle or EGR valve |
| Leaks in the cooling system | Coolant pipes and thermostat leaking | Coolant pipes and thermostat leaking | Leaks in the tee area |
| Expensive timing belt replacement | Two belts | Belt | Chain |
| Risk of valve damage if belt breaks | Yes | Yes | Low (chain) |
| Oil oil problems | Appears after 200,000 km | No | Often due to ring and cap wear |
| Problems with ignition coils and lambda probes | Rarely | Frequently | Not the longest life |
| Need to replace pistons during overhaul | No | No | Recommended to install forged pistons |
The motors have a problem with floating revs, which is due to EGR that needs to be cleaned from time to time either due to fuel or electronics faults. Despite the proximity to the CFNA, there are no knocking issues or other nasties here, these are quite good motors. With normal care and timely quality service, they will pass 300 thousand kilometers and more.
Tuning engines AZD, BTS, BCB
Atmospheric
The simplest way to add a little power is to do chip tuning, something supernatural will not happen, but you can get up to 120 hp. You can get about 10 more hp if you put a 4-2-1 exhaust manifold or buy a ready-made one. The rest makes no sense – too expensive and the 1.4 TSI will always be faster.
MOTOR RATING: 4