Battery Mar 28, 2006

After 6-1/2 years on the factory battery, I should consider myself lucky compared to some of the stories of short BMW battery life I have heard from other owners. However, by the end of winter 2006, the door locks were starting to open and close sluggishly and the battery was no longer holding onto a full charge. Time to replace with an Interstate, one of the best brands available.
Z3Battery-001 Other owners recommended the Interstate MTP-91, and this is the model that I first went to obtain. The MTP-91 is slightly smaller than the factory battery and...
1 Other owners recommended the Interstate MTP-91, and this is the model that I first went to obtain. The MTP-91 is slightly smaller than the factory battery and…
Z3Battery-002 After removing the battery terminals, use the same 10mm socket to remove the clamp at the rearward end of the battery.
2 After removing the battery terminals, use the same 10mm socket to remove the clamp at the rearward end of the battery.
Z3Battery-004 Then, unplug the drain tube from the forward end of the battery and remove the battery by sliding it rearward and out. This photo shows how the MTP-H6 is...
3 Then, unplug the drain tube from the forward end of the battery and remove the battery by sliding it rearward and out. This photo shows how the MTP-H6 is…
Z3Battery-005 Install the new battery in the reverse sequence. First, you will want to roughen up and remove any oxidation from the battery terminals. You can use a special...
4 Install the new battery in the reverse sequence. First, you will want to roughen up and remove any oxidation from the battery terminals. You can use a special…
Z3Battery-006 In this photo you can see that the OEM factory cap for the positive terminal fits nicely into the mounting holes on the MTP-H6.
5 In this photo you can see that the OEM factory cap for the positive terminal fits nicely into the mounting holes on the MTP-H6.