Hi everyone,
I'm in need of a little help pointing me in the right direction with my Alternator.
(GTI VII 2013 Performance Launch model)Currently its not charging immediately after what I suspect to be a blown seal on the oil pressure regulator valve, which happened due to sudden acceleration — nothing extreme (like 0-60mph) but sudden, thats when the error message came up battery not charging.
Initially I thought it was just the alternator knackered, but on closer inspection I found high pressure oil splatter/spurts on the Alt belt and pulley wheels, which is now pointing me toward the oil pressure valve thats located just below the alternator.
I haven't remove the valve yet, as I'm still waiting on the replacement part. A lot of guess work at the moment but I did manage to have my neighbour carry out a diagnostic test using VCDS, nothing came up reference the alternator or valve; however there are two engine faults that I'm not sure of.
Checked the battery with volt meter and its reading 11volts both ignition on/off, so I can confirm the alternator is not sending any charge to the battery.
My question is, could the oil have damage the alternator? Or is there slippage on the belt due to oil on the pulleys? Looking at it, it all seems to be running fine, no weird noises; no oil leaks or oil warning lights.
Thanks.
The VCDS report below two engine faults:
Address 01: Engine (J623-CHHA) Labels:. 06K-907-425-V1.clb
Part No SW: 5G0 906 259 HW: 06K 907 425 B
Component: 2.0l R4 TFSI H13 0009
Revision: --H13--- CVN: FC529D00
Coding: 091D00324424050B3000
Shop #: WSC 01357 011 00200
ASAM Dataset: EV_ECM20TFS0215G0906259 001013
ROD: EV_ECM20TFS0215G0906259.rod
VCID: 6BFB0BBB82B0B5CE0E-803E
VINID: 9E69EAAAA465A949C1184105240EDF1A86
2 Faults Found:
15446 - Blocking Valve for Coolant (N82)
P1889 00 [00100111] - Open or Short to Ground
Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 1
Mileage: 104127 km
Date: 2025.01.30
Time: 16:36:03
Engine RPM: 908.00 /min
Normed load value: 6.7 %
Vehicle speed: 0 km/h
Coolant temperature: 80 °C
Intake air temperature: 28 °C
Ambient air pressure: 1000 mbar
Voltage terminal 30: 11.464 V
Unlearning counter according OBD: 40
Engine: operating status: IS
STATE_LS_SAE[1]: CL
T_AST_SAE: 0 s
MAP_MES_SAE: 25 kPa
Lambda probe voltage: bank 1: probe 1 (broadband probe): 1.729 V
FAC_TPS_1_SAE: 12.500000 %
FUP_H_SAE: 10270.0 kPa
15447 - Thermostat for Transmission
P19A2 00 [00100111] - Open Circuit
Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 1
Mileage: 104127 km
Date: 2025.01.30
Time: 16:36:03
Engine RPM: 908.00 /min
Normed load value: 6.7 %
Vehicle speed: 0 km/h
Coolant temperature: 80 °C
Intake air temperature: 28 °C
Ambient air pressure: 1000 mbar
Voltage terminal 30: 11.464 V
Unlearning counter according OBD: 40
Engine: operating status: IS
STATE_LS_SAE[1]: CL
T_AST_SAE: 0 s
MAP_MES_SAE: 25 kPa
Lambda probe voltage: bank 1: probe 1 (broadband probe): 1.729 V
FAC_TPS_1_SAE: 12.500000 %
FUP_H_SAE: 10270.0 kPa
Readiness: 1010 0001
