New battery and starter, but car doesn't start every time. What could be the problem?

Asked by Oct 24, 2013 at 05:18 PM about the 2003 Mercedes-Benz SLK-Class SLK 230 Kompressor

Question type: Maintenance & Repair

For the past four years, my car wouldn't start in cold weather, but jumping it would start it up right
away. In the past couple of months, the car would randomly not start the second time around even
in warm weather. For example, I'd come out of the house and start it for the first time, which
always worked, but then I would drive somewhere, turn the car off, and then try to start it a second
time, and nothing. But jumping worked. So, I had the battery replaced, along with a corroded
cable, and it seemed to work fine for a week.

But then, it just stopped working completely. I would turn the key to the start position, and the
dashboard lights came on. The first couple of times, there was a clicking sound, and then nothing.
Since jumping didn't help, I had it towed to my very trustworthy auto shop, and it concluded the
problem was the starter. They did a very thorough assessment since my bf and his father had
looked over the car and thought it could be electrical but the mechanics found nothing else wrong
with it. So, I had that replaced, and when I went to pick it up, it worked perfectly. The next day, I
go to turn on the car, and it does so veerrry reluctantly. I turn it off, then turn the key to the start
position again, and absolutely nothing; the dashboard lights come one, and there's no clicking. I
leave it for a couple of hours to run some errands, and when I come back, I decide to try one more
time, and this time it starts up just fine, so I hightail it to the auto shop.

I've already gone through the two most obvious solutions, and I can't really afford any more repairs
for now unless the fix is really inexpensive. So I'm wondering what I should expect as far as the
possible causes? Thank you in advance for your input!

4 Answers

9,025

Has there been any accident damage or auto repair that could have exposed some of the wiring to intermittent grounding and/or battery drain.

4 of 4 people found this helpful.
125

that might be a problem, but make sure to check the starter relay and also check the draw on the battery. might be a light left on in the trunk, or maybe a bad clock drawing too much battery overnight. clocks i have seen go intermittent, like to drive you nuts chasing some of this electrical stuff. i used to love it! a mystery to be solved. good luck!

I've seen a lot of weird battery problems. Some things that blew my mind when I figured it out was "grounds". I had a problem with a truck that would only start every once in a while, no rhyme or reason, turned out it was a loose engine ground, no problems since. Might trace the fat ground to the block and check it, might help...good luck.

10

Everyone is saying it might be the wiring but to me it really sounds more like the solenoid, I had a car that the wire was loose on the solenoid and I'd go to start it lights come on no blown fuses and nothing but when I let it sit it would so.etimes have a little connection then work for one or two starts check the wires to the solenoid

1 of 1 people found this helpful.

Your Answer

SLK-Class

Looking for a Used SLK-Class in your area?

CarGurus has 1,156 nationwide SLK-Class listings starting at $2,991.

ZIP:

Mercedes-Benz SLK-Class Experts

  • #1
    Richard Keeler
    Reputation
    340
  • #2
    Michael Kane
    Reputation
    250
  • #3
    bobkat
    Reputation
    240
View All

Related Models For Sale

Used Mercedes-Benz SL-Class
55 Great Deals out of 2,693 listings starting at $3,950
Used Mercedes-Benz C-Class
609 Great Deals out of 23,245 listings starting at $1,995
Used Mercedes-Benz CLK-Class
38 Great Deals out of 1,206 listings starting at $1,500
Used BMW Z4
56 Great Deals out of 1,032 listings starting at $3,900
Used Mercedes-Benz E-Class
449 Great Deals out of 19,563 listings starting at $1,500
Used Chevrolet Corvette
255 Great Deals out of 22,054 listings starting at $2,500
Used BMW 3 Series
1,017 Great Deals out of 31,335 listings starting at $795
Used Porsche Boxster
33 Great Deals out of 1,128 listings starting at $3,995
Used Mercedes-Benz S-Class
145 Great Deals out of 5,883 listings starting at $2,000
Used Porsche 911
106 Great Deals out of 4,933 listings starting at $11,500
Used Ford Mustang
759 Great Deals out of 42,122 listings starting at $1,300
Used Mazda MX-5 Miata
73 Great Deals out of 4,248 listings starting at $2,000

Used Cars For Sale

2016 Mercedes-Benz SLK-Class For Sale
46 listings starting at $29,800
2015 Mercedes-Benz SLK-Class For Sale
8 Great Deals out of 168 listings starting at $27,719
2014 Mercedes-Benz SLK-Class For Sale
9 Great Deals out of 186 listings starting at $24,995
2013 Mercedes-Benz SLK-Class For Sale
4 Great Deals out of 55 listings starting at $20,999
2012 Mercedes-Benz SLK-Class For Sale
48 listings starting at $18,950

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.