starter wont engage

Asked by CanuckCowboy Dec 16, 2019 at 12:34 PM about the 2010 Audi A5 2.0T quattro Coupe AWD

Question type: Maintenance & Repair

Wow where do I start. I have a 2010 A5 Quattro 2.0L. I pulled the engine and totally rebuilt it. Put it back in the car and when I go to start it. the dashboard goes black then nothing. I believe that all of my grounds are okay. The starter looked great when I had it out. No signs of corrosion. The battery was dead but boosting the car had the same results.  

2 Answers

355

Since you did all the work yourself your only course of action is the back-trace everything. Unfortunately there will be nothing online that can help you - unless - somebody has done the exact same thing and can give you some pointers. Sounds electric to me. Connection not plugged all the way in? Wires chaffed and grounding out? Fried ECM from wiring not hooked up correctly - host of things. Good luck.

Maybe I should be more specific. I get an ECM error code U0100 but also a transmission module code error and other minor errors. I have two ECMs for my vehicle. The car only blacks out when I try to start it. I have all other stationary functions.

Your Answer:

CarGurus Experts

  • #1
    Guru9TWSF
    Reputation
    2,210
  • #2
    AudiGuruJP
    Reputation
    1,540
  • #3
    Sha Kidd
    Reputation
    940
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Audi A6
4 Great Deals out of 118 listings starting at $3,950
Used Audi S5
4 Great Deals out of 126 listings starting at $11,995
Used Audi A4
38 Great Deals out of 696 listings starting at $4,750
Used Audi Q5
59 Great Deals out of 2,205 listings starting at $4,995
Used BMW 3 Series
71 Great Deals out of 1,168 listings starting at $1,795
Used Mercedes-Benz C-Class
98 Great Deals out of 1,450 listings starting at $3,799
Used BMW 5 Series
18 Great Deals out of 323 listings starting at $4,500
Used Audi A3
21 Great Deals out of 421 listings starting at $3,977
Used Ford Mustang
65 Great Deals out of 1,258 listings starting at $4,995
Used Mercedes-Benz E-Class
30 Great Deals out of 498 listings starting at $5,700
Used Audi S4
10 Great Deals out of 84 listings starting at $11,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.