Just purchased Audi A4 - Issues
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1st Gear
Joined: Mar 2011
Posts: 5
Just purchased Audi A4 - Issues
Hey everyone, new Audi owner here.
Just purchased an Audi A4 2002 over the weekend. The car is absolutely beautiful, inside and out. And then you get under the hood.
So when I first purchased it, I noticed this strange feeling with the transmission. It only happened sometimes, but after reversing out of a spot, I'd put it in drive, and it wouldn't move. If I hit the gas, it'd do a real sudden jerk, and everything would be fine. This would also happen when I came to a complete stop.
So, I brought it to a different mechanic to have them take an hour to totally look over the car. They said that everything looked great, new break pads, no leakages, etc. They said the feeling of the jerk is because I wasn't used to driving the car, and I wasn't waiting long enough to hit the gas (because of the flyby wire).
The next day I was driving home from work and saw that the check engine light came on. It made me worried so I called the mechanic who looked it over, and let him know that the check engine light came on, and I was still feeling the odd feeling of the jerkiness, so I let them know I want it checked out again.
This time, they hooked it up to the diagnostics system, and quite a few codes came out.
18010
18057
17072
17831
17819
When I brought it back to the used car dealership I purchased it from, and they said they'd fix everything no problem, but also mentioned that the last two is probably the cause of all the other issues I'm having. Could this be true?
Just purchased an Audi A4 2002 over the weekend. The car is absolutely beautiful, inside and out. And then you get under the hood.
So when I first purchased it, I noticed this strange feeling with the transmission. It only happened sometimes, but after reversing out of a spot, I'd put it in drive, and it wouldn't move. If I hit the gas, it'd do a real sudden jerk, and everything would be fine. This would also happen when I came to a complete stop.
So, I brought it to a different mechanic to have them take an hour to totally look over the car. They said that everything looked great, new break pads, no leakages, etc. They said the feeling of the jerk is because I wasn't used to driving the car, and I wasn't waiting long enough to hit the gas (because of the flyby wire).
The next day I was driving home from work and saw that the check engine light came on. It made me worried so I called the mechanic who looked it over, and let him know that the check engine light came on, and I was still feeling the odd feeling of the jerkiness, so I let them know I want it checked out again.
This time, they hooked it up to the diagnostics system, and quite a few codes came out.
18010
18057
17072
17831
17819
When I brought it back to the used car dealership I purchased it from, and they said they'd fix everything no problem, but also mentioned that the last two is probably the cause of all the other issues I'm having. Could this be true?
1st Gear
Joined: Jun 2010
Posts: 49
18010/P1602/005634 - Power Supply B+ Terminal 30: Voltage too Low
Possible Causes
Cables on the Battery were removed
Battery weak (voltage)
Generator Disfunction
Possible Solutions
Check Battery Cables
Check/Replace Battery
Check/Replace Generator
Special Notes
If multiple Control Module have Power Supply Faults stored, it's most likely to be one common Problem like the ones shown above. Otherwise when only one or two Control Modules have such Codes stored you better start searching at the individual Power Supply of these Modules.
Terminal 30 means unswitched battery power that is supplied even when the ignition is off. This is not referring to any physical terminal numbered 30.
Possible Causes
Cables on the Battery were removed
Battery weak (voltage)
Generator Disfunction
Possible Solutions
Check Battery Cables
Check/Replace Battery
Check/Replace Generator
Special Notes
If multiple Control Module have Power Supply Faults stored, it's most likely to be one common Problem like the ones shown above. Otherwise when only one or two Control Modules have such Codes stored you better start searching at the individual Power Supply of these Modules.
Terminal 30 means unswitched battery power that is supplied even when the ignition is off. This is not referring to any physical terminal numbered 30.
18057/P1649/005705 - Powertrain Data Bus: Missing Message from ABS Controller
Possible Symptoms
Malfunction Indicator Light (MIL) ON
Possible Causes
Fault Code(s) stored in Brake Electronics (J104)
Communication Error with Brake Electronics (J104)
Possible Solutions
Check Brake Electronics (J104) for Fault Codes
Check Communication with Brake Electronics (J104)
See Measuring Value Blocks (MVB)
Possible Symptoms
Malfunction Indicator Light (MIL) ON
Possible Causes
Fault Code(s) stored in Brake Electronics (J104)
Communication Error with Brake Electronics (J104)
Possible Solutions
Check Brake Electronics (J104) for Fault Codes
Check Communication with Brake Electronics (J104)
See Measuring Value Blocks (MVB)
17072/P0688/001672 - ECM Power Relay Load Circuit: (J271): Open Circuit
Possible Symptoms
Engine Coolant Fan running at full Speed while Ignition is OFF and Engine is COLD (could lead to discharged Battery)
Possible Causes
Fuse(s) faulty
Power Supply Relay for Engine Control Module (J271) faulty
Terminal 87 faulty/hanging
Wiring between Engine Control Module (J220) and Power Supply Relay for Engine Control Module (J271) faulty
Possible Solutions
Check/Replace Power Supply Relay for Engine Control Module (J271)
Check Wiring between Engine Control Module (J220) and Power Supply Relay for Engine Control Module (J271)
Check/Replace Engine Control Module (J220)
Possible Symptoms
Engine Coolant Fan running at full Speed while Ignition is OFF and Engine is COLD (could lead to discharged Battery)
Possible Causes
Fuse(s) faulty
Power Supply Relay for Engine Control Module (J271) faulty
Terminal 87 faulty/hanging
Wiring between Engine Control Module (J220) and Power Supply Relay for Engine Control Module (J271) faulty
Possible Solutions
Check/Replace Power Supply Relay for Engine Control Module (J271)
Check Wiring between Engine Control Module (J220) and Power Supply Relay for Engine Control Module (J271)
Check/Replace Engine Control Module (J220)
17831/P1423/005155 - Secondary Air Injection System; Bank 1: Insufficient Flow
Possible Symptoms
Malfunction Indicator Light (MIL) active
Possible Causes
Fuse for Secondary Air Injection Pump blown
Vacuum Hose(s) leaky
Piping between Secondary Air Injection Pump and Secondary Air Injection Valve leaking
Possible Solutions
Check Fuse for Secondary Air Injection Pump
Check Vacuum Hose(s)
Check Piping between Secondary Air Injection Pump and Secondary Air Injection Valve
Possible Symptoms
Malfunction Indicator Light (MIL) active
Possible Causes
Fuse for Secondary Air Injection Pump blown
Vacuum Hose(s) leaky
Piping between Secondary Air Injection Pump and Secondary Air Injection Valve leaking
Possible Solutions
Check Fuse for Secondary Air Injection Pump
Check Vacuum Hose(s)
Check Piping between Secondary Air Injection Pump and Secondary Air Injection Valve
7819/P1411/005137 - Secondary Air Injection System; Bank 2: Insufficient Flow
Possible Symptoms
Malfunction Indicator Light (MIL) active
Possible Causes
Fuse for Secondary Air Injection Pump blown
Vacuum Hose(s) leaky
Piping between Secondary Air Injection Pump and Secondary Air Injection Valve leaking
Possible Solutions
Check Fuse for Secondary Air Injection Pump
Check Vacuum Hose(s)
Check Piping between Secondary Air Injection Pump and Secondary Air Injection Valve
Possible Symptoms
Malfunction Indicator Light (MIL) active
Possible Causes
Fuse for Secondary Air Injection Pump blown
Vacuum Hose(s) leaky
Piping between Secondary Air Injection Pump and Secondary Air Injection Valve leaking
Possible Solutions
Check Fuse for Secondary Air Injection Pump
Check Vacuum Hose(s)
Check Piping between Secondary Air Injection Pump and Secondary Air Injection Valve
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