thomas_johnson40
Sprinter diesel manifold pressure sensor issue
Summary of the thread
A 2015 Mercedes Sprinter diesel experienced issues with a check engine light, reduced engine power, sluggish response, and increased fuel consumption, suspected to be due to a faulty manifold pressure sensor. The problem was thought to be linked to a vacuum leak affecting the MAP sensor. Suggestions included checking hoses connected to the intake manifold for cracks or damage. Ultimately, a garage confirmed the manifold pressure sensor was faulty and causing a vacuum leak, and replacing the sensor resolved the issues.
Did this summary help you solve your problem?
4 comment(s)
thomas_johnson40 (community.author)
Thanks! When you say 'hoses connected to the intake manifold,' which specific hoses are you talking about? I want to check the right ones. And how would I know if the MAP sensor is the problem?
liam_schmitz79
I'm no mechanic, but there are diagrams online for the hose layout. The sensor might need replacing, based on your description. A workshop check might be best.
thomas_johnson40 (community.author)
Thanks. You were right about getting it checked. The garage said the manifold pressure sensor was bad and causing a vacuum leak. I replaced it, and the Sprinter is running well again. It cost 235€ for the sensor and labor.
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
MERCEDES
community_crosslink_rmh_model
SPRINTER
liam_schmitz79
Vacuum leak, huh? Check the hoses connected to the intake manifold. They crack and cause problems. It could be a simple fix, or the sensor itself might be bad.