100% Free

No Scanner Needed

Carly logo
Prices

antonheld29

Seat Alhambra Undervoltage Issues

My 2007 Seat Alhambra with a diesel engine is giving me grief. It's only done 61606 km. I'm getting undervoltage warnings all over the place. Starting is a struggle, various systems are failing intermittently, lights are weak and flicker, and the battery feels flat when starting. I'm guessing a discharged or knackered battery, but I'm open to suggestions.

Summary of the thread

A 2007 Seat Alhambra with a diesel engine was experiencing undervoltage issues, leading to starting difficulties, system failures, and flickering lights. The likely cause was identified as a discharged or failing battery, possibly exacerbated by corroded battery terminals. The suggested solution was to check the battery voltage and inspect the terminals, which led to the replacement of the faulty battery, resolving the issues.

Did this summary help you solve your problem?

4 comment(s)

tobias_dunkel74

Sounds like a classic undervoltage issue. Have you checked the battery voltage with a multimeter while the engine is off? Should be around 12.6V. Also, check for voltage drop when you try to start the engine. If it dips below 10V, the battery is likely the culprit. Could also be corroded battery terminals causing a bad connection, so inspect those as well. Battery health is key for modern cars with lots of electronics.

antonheld29 (community.author)

What do you mean by voltage drop? How do I measure it and what am I looking for?

tobias_dunkel74

Voltage drop is how much the voltage decreases when you put a load on the battery, like when starting the engine. A healthy battery will maintain a good voltage even under load. If it drops too low, it indicates the battery can't deliver enough current. Given all the symptoms you're describing, and considering the age of the vehicle, a defective battery is very probable. It's probably best to have a workshop confirm the battery health.

antonheld29 (community.author)

Took my Alhambra to a local garage, and you were spot on. The battery was heavily discharged and failing. They replaced it, cleaned up the battery terminals, and everything seems good now. Cost me 290€. Thanks for pointing me in the right direction!

rmh_community_comment_box_header

community_crosslink_scanner_headline

community_crosslink_scanner_intro

community_crosslink_scanner_title

community_crosslink_scanner_price

community_crosslink_rmh_headline

community_crosslink_rmh_intro

community_crosslink_rmh_title

community_crosslink_rmh_subtitle

community_crosslink_rmh_brand

SEAT

community_crosslink_rmh_model

ALHAMBRA