power loss

HI, I am having power loss issues when accelerating in my 2019 Mercedes Vito 114 2.1 diesel automatic. I first noticed the symptoms used to happen on a cold engine. it struggles to accelerate with normal power. After about 30 mins of driving, when the engine is warm, the issue seemed to go...

Hi all, I have a A180 (W169, 2006 1992cc diesel automatic). Recently I replaced an injector seal. Since then the car has an intermittent fault - it will be going fine, and then there is a sudden drop in power and white/grey smoke out of the exhaust. When I stop the engine and restart it's all...

Hi, I own a W204, if you need any more details about my car after reading this, please let me know. Regularly, smoke is coming out of the exhaust and when I press the throttle down hard a lot of smoke comes out and it is black in colour. The car seems to run okay, but then suddenly it...

Hi all, all advice welcomed - my R320 has a loss of power unless its on boost which is making it undrivable in town unless manually changing gear. It's just had a new turbo fitted by my garage after the old one destroyed the vanes, on fitting it threw a Y77/1 boost pressure regulator code, they...

Hey guys, hope all of you had a great week so far! About two months ago the EML of my car turned up and being checked by the dealer. No unusual signs beside the Auto Stars/Stop (Eco System) stops working completely at that time. I was told that the Boost Pressure Sensor & the auxiliary...

Hi all, I've enjoyed 4 years trouble free not in my petrol W204 cabriolet but have recently encountered a problem with intermittent power loss which may be associated with use of kick down or possibly use of cruise control. Although the car continues to drive, when I"put my foot down" the revs...

Hi there. I was traveling on the motorway when my e350 cdi 231bhp lost power. When I pulled over it appeared when I revved the power was still low and white smoke was starting to appear. I have got it recovered and home but I'm wondering if it could be turbo or injectors? And also would the...

Hi My car (Mercedes S320 CDI W221 2007) has done 75,000 KMs and for last 6 months there is this very strange problem. After every 3-4 days the car looses power and drives very heavy as there is some extraordinary weight on it and after i use a blower to clean engine compartment it again...

Hey, I have a E250 Blue-Cy Agarde Cdi W212 2010 that has issues with its power output. The car has done 103,000 miles. When starting the car it is normal but after 20-30 minutes it goes into limp mode and the check engine light comes on. When idle with the car, the rev meter bounces at 1000...

Hi, I'm having problems with my S210 e320 cdi (200k miles), it's seriously lacking power. The car will accelerate quite normally up to about 30-40 miles per hour but then just seems to really struggle to gain speed. The car doesn't want to rev up and has no power top end, it struggles to rev up...

Hello. I bought a 1994 E300D (OM606.910) a few weeks ago and have been driving it trouble free, until one day on the motorway (70 mph) the revs dropped and I started slowing down. I pulled over and the engine spluttered to a stop as if running out of fuel, despite having half a tank left...

Hi all, new to the forum and to the world of Mercedes Benz and engines in general. I've just bought a 310d motorhome which needs a lot of work, but thought the engine sounded lovely. I've spoken to a chap who seems to know about these things and he thinks I'm not getting the fuel economy that...

My 2011 Vito 116 CDi with 112,000 miles, fully serviced has just decided to lose power. Coolant warning light carm up in computer display indicating to pull over and switch off immediately, coupled with a loss of power, unable to get above 40mph, no revs. Pulled over. Switched off. Checked...

Just wanted to get some thoughts on what could cause lower than expected power output on my C43.... I know its getting on a bit now but from the stated 302hp from new it does seem that a number of horses have bolted.. I do not get any Check engine lights, and have scanned the ecu for faults with...

Hi It seems we have an odd issues with our c220 CDI. The car drives and performs fantastic during winter months but have noticed that when the outside temp is 10 degrees plus. When cruising/engine temp is upto working then we get stutters and some power loss ie its limited to 3K revs and...

Please can anyone help with this problem... I've spent just under £600 at the Garage on mainly "trial and error" and I’m no closer to fixing this… The Star machine at Merc brought up nothing… so I’ve just been passed from pillar to post Over a year ago, I noticed that on occasion there was...

Have been a private owner of E Class Estates for over 25 years now ~ all automatics. Now have a new problem: when starting in the mornings, my E320 is very sluggish; it moves through the gears much too quickly, so that it is already in top when tackling the slight incline just 200 yards away...

Dear All, My E320cdi automatic (w210 late 2000 with 90k miles) has an intermittent problem whereby : - It won't kickdown, or even change down on the throttle. - It seems to lack power in whatever gear I select manually. - Seems unwilling to rev much over 2000 rpm. I have clean...

My 2001/W203 C Coupe 220CDi has developed a fault where part way through a journey it loses power. Happens after 30mins/30 miles, car will accelerate up to 70mph on flat - on hills it slows to 55mph. Only first 30% of accelerator travel has any effect, the next 30-100% makes no difference...