How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Matt Your Own Question
Matt
Matt, Mechanical Engineer
Category: Audi
Satisfied Customers: 21988
Experience:  BEng hons Mech engineering, in auto industry 22 years
12772297
Type Your Audi Question Here...
Matt is online now

My audi a3 2.0 tdi sline on a 56 plate keeps flashing up

Resolved Question:

hi my audi a3 2.0 tdi sline on a 56 plate keeps flashing up with engine management e.s.p and oil pressure warning , it will lose a bit of power then when i turn the ignition off the car struggles to start for a few ties ,once started the lights all go out for a time then will come on randomly as before .Please can you tell me what the problem is as i have only had it a year and its only done 35,000 miles with regular services .Also changed the oil pressure sensor hoping that was the cause but it but wasn't .Thank you very much
Submitted: 2 years ago.
Category: Audi
Expert:  Shantal-Mod replied 2 years ago.
Hello,
I'm Shantal and I'm a moderator for this topic.
I've been working hard to find a Professional to assist you with your question, but sometimes finding the right Professional can take a little longer than expected.
I was checking to see if you had already found your answer or if you still need assistance from one of the Professionals.
Please let me know if you wish to continue waiting or if you would like for us to close your question?
Thank you,
Shantal
Customer: replied 2 years ago.

hi thank you for your message ,yes i would like to keep the question open please as i can't find anything related to this on any web site and getting worried about whats causing the problem .

Thank you again

k pawluk

Expert:  Shantal-Mod replied 2 years ago.
Hello K Pawluk,
Thank you for getting back to me and apologies that you have not received an answer yet. We have a range of Professionals online all the time. However specialties differ, and we are searching for the right professional to assist you.
Should you wish to close your question and reverse your charges at any time please let me know.
Thank you for your patience,
Shantal
Expert:  Matt replied 2 years ago.

Hello

I'd 1st suggest measuring the actual oil pressure with seperate mechanical gauge - this can be plumbed into the engine via the current pressure switch port - if you use a Tee piece you can keep the pressure switch plumbed in as well and so see if the low pressure light corresponds to a low pressure reading.

As its intermittant and you have no rumbling or rattling noises from the engine its likely to be an electrical fault so 1st check the connection to the pressure switch is bright and clean and check back along the switch wiring for any signs of damage to the insulation

As if the wire is grounded out at any point then this will also turn on the light.

If you do have a low pressure reading ( should be 4 bar (59psi) at 2000rpm) and to turn on the light it will be very low about 5psi then replace the oil pump and ensure that the pump pickup in the sump hasn't come loose or is blocked

Matt, Mechanical Engineer
Category: Audi
Satisfied Customers: 21988
Experience: BEng hons Mech engineering, in auto industry 22 years
Matt and other Audi Specialists are ready to help you