janameyer4
Seat Leon Diesel Engine Problem
Summary of the thread
A 2005 Seat Leon with a diesel engine is experiencing a check engine light and increased fuel consumption. The problem is suspected to be related to the inlet VANOS mechanics, possibly due to a faulty camshaft solenoid valve or a power supply issue. The suggested solution is to have the solenoid valve checked and potentially replaced by a professional workshop. After following this advice, the faulty inlet camshaft solenoid valve was replaced, resolving the issue with the check engine light and fuel consumption.
Did this summary help you solve your problem?
4 comment(s)
janameyer4 (community.author)
Lost power at lower RPMs, you say? Yes, I've noticed that too. It's not dramatic, but definitely noticeable, especially when accelerating from a standstill. What exactly did you do to fix it?
manfredfischer6
Yeah, the low power is a telltale sign. I tried cleaning the solenoid valve at first, thinking maybe it was just some oil sludge buildup, but no luck. Honestly, I'd suggest taking it to a workshop. Messing with the camshaft can be tricky, and you don't want to cause more damage. Plus, they can properly diagnose if it's a solenoid or something else. My repair cost around 250€.
janameyer4 (community.author)
Took it to the workshop as you suggested. They confirmed a faulty inlet camshaft solenoid valve. Replaced it, and the check engine light is gone. Fuel consumption seems back to normal. Thanks for the advice.
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
LEON
manfredfischer6
Check engine light and higher fuel consumption, huh? Sounds familiar. I had similar problems with my Leon, though I've got a petrol engine. I think it might be the VANOS system. I believe the BMW VANOS system shares a similar concept. Does the engine feel like it's lost some power, especially at lower RPMs?