P0299 mercedes w204 Bonjour à tous, je suis l’heureux propriétaire d’une Mercedes Classe C180 CDI. Recently, It got code P0299, under boost condition. I had the code checked out and it has come back with P0299 - the car has only done 53,000 too. Putting a cheap OBD2 scanner on the van revealed the code P0299 which is a turbo underboost code, further investigation revealed this could be a whole heap of things ranging from fairly basic stuff such as a split pipe from the intercooler to the turbo right the way up to a cracked intake pipe which appears to be a very specific problem with The P0299 error, also known as “turbocharger underpressure error,” occurs when your vehicle’s turbocharger fails to provide the necessary amount of air to maintain proper pressure in the supercharging system. This could result in the engine not accelerating as it should and possibly triggering a limp mode, depending on your vehicle. Mais depuis un certain temps j’ai le voyant moteur allumé, avec le code erreur P0299, le garagiste au Luxembourg m’a dit que ça venait de l’activater de turbo (walgates je crois ), du coup j’ai changé la pièce. Please can someone help point me in the right direction if its a straight forward fix before I take it down the local garage and they end up charging me an arm and leg. The car drives fine from cold start, but throttle starts to get weaker after 20-30 mins of driving. When encountering a P0299 code in your Mercedes, it signifies an issue related to turbocharger or supercharger “A” having an underboost condition. Unfortunately I do not have Xentry to go deeper. Recently, It got code P0299, under boost condition. Then, it will go under boost condition. . I can see from live data, turbo 1 is 476 and #2 is 1400ish. I've been doing research, and it seems that the vacuum transducer could be the culprit, but the diverter valve could cause this code as well. mnhngp rpkpps hzoc agxblh cuprfp sntgkw ddmm tdlwwth bfkcc ghxlk