P0036 or 16420 on your Volkswagen Jetta

P0036 is flagged by the computer when it sees a problem with the downstream oxygen sensor circuit. As far as you are concerned, you should change your oxygen sensor and see what happens. There is a 95% chance that this will fix your problem.

Here is the link for the correct oxygen sensor to buy: Bosch 15160

The other but not likely posibilities are the ECM or a wire in between.

P0032 or 16416 on your Vokswagen Jetta

P0032 is flagged by the computer when it sees a problem with the upstream oxygen sensor circuit. As far as you are concerned, you should change your oxygen sensor and see what happens. There is a 95% chance that this will fix your problem.

Here is the link for the correct oxygen sensor to buy: Bosch 15024

The other but not likely posibilities are the ECM or a wire in between.

P0031 or 16415 on your Volkswagen Jetta

P0031 is flagged by the computer when it sees a problem with the upstream oxygen sensor circuit. As far as you are concerned, you should change your oxygen sensor and see what happens. There is a 95% chance that this will fix your problem.

Here is the link for the correct oxygen sensor to buy: Bosch 15024

The other but not likely possibilities are the ECM or a wire in between.

P0030 or 16414 on your Volkswagen Jetta

P0030 is flagged by the computer when it sees a problem with the upstream oxygen sensor circuit. As far as you are concerned, you should change your oxygen sensor and see what happens. There is a 95% chance that this will fix your problem.

Here is the link for the correct oxygen sensor to buy: Bosch 15024

The other but not likely posibilities are the ECM or a wire in between.

Fuse and relay location and identification

Fuse ID and Amperage

1. Headlight, Low Beam, Left (56b) 10 Amps
2. Headlight, Low Beam, Right (56b) 10 Amps
3. License Plate Lights (58) 10 Amps
4. Rear Window Wiper And Washer System 15 Amps
5. Windshield Wiper/Washer 15 Amps
6. Fresh Air Blower, A/C (X) 20 Amps
7. Tail Lights, Right (58R) 10 Amps
8. Tail Lights, Left (58L) 10 Amps
9. Rear Window Defogger 20 Amps
10. Fog Lights 15 Amps
11. Headlight, High Beam, Left (56a) 10 Amps
12. Headlight, High Beam, Right (56a) 10 Amps
13. Horn (15) 10 Amps
14. Back-Up Lights 10 Amps
15. Engine Electronics (15) 10 Amps
16. Power Sunroof, Front Map/Reading Light 15 Amps
17. Emergency Flashers (15) 10 Amps
18. Fuel Pump (FP), Heated Oxygen Sensor (HO2S)Control Module 20 Amps
19. Coolant Fan, A/C Relay (30) 30 Amps
20. Brake Lights (30) 10 Amps
21. Interior Lights, Clock, Luggage CompartmentLight (30) 15 Amps
22. Cigarette Lighter, Radio, Luggage CompartmentRelease 10 Amps

More fuses (Located above the relays)

-	Fuse for ABS hydraulic pump relay	30 Amps
-	Fuse for ABS main relay	30 Amps
-	Fuse for A/C	30 Amps
-	Fuse for power windows	20 Amps
-	Fuse for cruise control	5 Amps
-	Fuse for cigarette lighter	15 Amps

Relays

1	-	A/C Relay (13)
2	-	Rear Window Wiper/Washer Relay (72)
3	-	ECM (Engine control Module)
3	-	Power Supply Relay (30, 109, 288)
4	-	Load Reduction Relay (18)
5	-	Open
6	-	Emergency Flasher Relay (21)
7	-	Open
8	-	Washer/Wiper Intermittent Relay (19, 99)
9	-	Seat Belt Warning System Relay (4, 29)
10	-	Fog Light Relay
11	-	Dual-Horn Relay (53) Or Bridge For Horn
12	-	Fuel Pump Relay (67, 80,167) Or Glow Plug Relay (102,104)

Separate relays above fuse/relay panel 

13	-	Heated Oxygen Sensor (HO2S) Control Module
14	-	Park/Neutral Position Relay (150)
15	-	Open
16	-	Open
17	-	Open
18	-	Open
19	-	Open
20	-	Open
21	-	Open
22	-	Open
23	-	Open
24	-	Open

Golf IV / Jetta IV Recommended fluids and filters

Filters

Filter	Product Link
Oil filter	Mann-Filter HU 932/6 N
Fuel Filter	MAHLE Original KL 2 Fuel Filter
A/C Cabin filter	Mann-Filter CU 2882
Air Filter	Mann-Filter 27 154/1 Air Filter

 Fluids

Fluid	Specification	Capacity	Product Link
Brake Fluid	DOT 4	-	Motul DOT 5.1
Coolant/Antifreeze	G12++	About 5.5 liters	VOLKSWAGEN G12++
Differential Fluid	75W90	0.75 liters	Motul 3178CZ 75W90
Engine Oil	VW Specific 505.01; 502.00 and 505.00	4 liters	Motul SPECIFIC 505 01 502 00 505 00 - 5W40
Power Steering Fluid	G 002 000	-	Pentosin CHF 11S
Transmission Fluid	VW ATF	5.5 liters	VW (84-06) ATF1