need help Baterry?

[shaahid]

hi I am having trouble with my E270 cdi 2003 it doesn't start up unless I give it a jump start will I need to replace my battery that is in the boot? a message appears on my dash saying battery protection, convince functions temp unavailable does this mean anything :S

 

[television]

How often is the car driven, have you ever tried charging the rear battery.

 

[brandwooddixon]

From what you've said, your battery would appear to be holding almost no charge.,especially if it says "battery protection" on the dash and won't turn over, or is very lethargic when doing so.

The boot battery is used in powering the starter motor and glow plugs.

So is it lethargic in turning over or does it turn over reasonably quickly but need a jump start to get it going?

 

[shaahid]

it turns over quickly but I have to jump start the battery each time to start it, I just bought the car few days ago and don't know how long its been stood still for however it started first time then and now it wont start unless I give it jump would it be best if I change the battery, goanna do a battery check on both the batteries. cheers guys

 

[television]

The hard problem here is you do not know the condition of the battery, many selling cars will put a dud battery on, if you change it and still have problems, then a drain somewhere.

 

[shaahid]

Gonna take it to a garage and change the battery hope its that will i have to change the battery in the rear or the front?

 

[television]

Its impossible to do much in the way of a test if they are flat, the rear one is the main one.

 

[shaahid]

I did the voltage check on the dash and it came up as 11 does this mean anything, after the cars been jump started shouldnt the battery charge itself up hmmm

 

[television]

Nope, alternators are not made to charge flat batteries, it can take up to 20 hours with a good 6 amp charger, to get the battery fully charged, that is equal to 500 miles of non stop driving.

 

[shaahid]

Going to get the battery changed today hope this fixes the problem i will keep you updated cheers mate

 

[shaahid]

Quick update on the e270 i changed the battery in the rear and this solved my problem and also the notice on the dash about battery protection had gone off tooo thanks for your help! Gonna post another thread in the engine section about servicing and a engine flush!

 

[shaahid]

hello again I changed my battery on my e270 yesterday and everything was working fine the malfunctions battery protection had disappeared and has come up again now after a few miles driven also a red light has come up with the battery and visit workshop any ideas why this could be?

 

[television]

You are not charging Sir, the reg pack could have failed on the alternator, the voltage across the battery with the engine running should be 13.8 volt, and this will be your problem. A simple check with a voltmeter over the battery would confirm that.

 

[shaahid]

Would it be the regulator or would it be the alternator it self? Would this fix be costly any rough prices?

 

[television]

99 times out of 100 its the reg pack about £20

 

[shaahid]

Thanks for the help al have a look what my local garage charges for labour

 

[shaahid]

hi ive been told changing the regulator is a fairly easy job just wanted to confirm if this is true will I be able to change it myself or do I need to take in to a garge

 

[television]

You can do it in situ, would you like the fitting instructions.

 

[shaahid]

If you could that would be great!

 

[television]

PM Email address please