如果你的奔馳去做保養(yǎng)，無論是4s店還是熟悉的汽修店，以下這4個項目絕對不要做，不然花的都是冤枉錢！

　　If you go for maintenance on your Mercedes Benz, whether it's at a 4S dealership or a familiar auto repair shop, never do the following 4 items, otherwise it will be a waste of money!

　　1、發(fā)動機(jī)內(nèi)部油泥清洗很多地方會讓你保養(yǎng)的時候順便清洗下發(fā)動機(jī)的機(jī)油油泥，使用的方法是換油之前加一瓶清洗劑，然后讓發(fā)動機(jī)運轉(zhuǎn)時10-20分鐘再放掉，之后加入新的機(jī)油。                                                                                                                                                                                                                                          這里告訴大家，只要保養(yǎng)的時候用的是正品的全合成機(jī)油，無論你的車跑了10萬還是20萬公里，發(fā)動機(jī)內(nèi)部都不會產(chǎn)生任何的油泥。并且如果加了這種清洗劑之后，可以說是百害而無一利，這是因為發(fā)動機(jī)內(nèi)部結(jié)構(gòu)是非常復(fù)雜的，加進(jìn)去之后并不能徹徹底底的放出來，會有部分殘留在發(fā)動機(jī)內(nèi)部。

　　1. Cleaning the oil sludge inside the engine can help you clean the engine oil sludge during maintenance. The method is to add a bottle of cleaning agent before changing the oil, and then let the engine run for 10-20 minutes before draining, and then add new oil. Here's to tell everyone that as long as you use genuine fully synthetic engine oil during maintenance, no matter whether your car has been driven 100000 or 200000 kilometers, there won't be any sludge generated inside the engine. And if this cleaning agent is added, it can be said to be harmful without any benefit, because the internal structure of the engine is very complex, and after adding it, it cannot be completely released, and there will be some residue inside the engine.

　　2、干冰清洗積碳

　　2. Clean carbon deposits with dry ice

　　相信你或多或少都經(jīng)歷過被推銷清洗積碳的服務(wù)，更有的店會宣稱：“如果你的車積碳太多的話，就需要拆開發(fā)動機(jī)了，得不償失”。所以真的有必要去清洗積碳嗎？這是要分情況的，現(xiàn)在的車都是搭配缸內(nèi)直噴發(fā)動機(jī)，10萬公里以內(nèi)都不需要清潔積碳和節(jié)氣門，平時定期保養(yǎng)的時候更換質(zhì)量可靠的空氣濾芯，如果經(jīng)常在市區(qū)擁堵路段行駛，定期使用燃油寶防止噴油嘴堵塞就可以了。而自然吸氣的發(fā)動機(jī)，還是建議每6萬公里去檢查下是否有積碳。（小貼士：自然吸氣的發(fā)動機(jī)，每4萬公里發(fā)動機(jī)因為積碳過多，會抖。）

　　I believe you have more or less experienced being promoted to clean carbon deposits, and some stores may claim, 'If your car has too much carbon deposits, you will need to disassemble the engine, which is not worth the loss.'. So is it really necessary to clean carbon deposits? This depends on the situation. Nowadays, cars are equipped with direct injection engines, and there is no need to clean carbon deposits and throttle valves within 100000 kilometers. During regular maintenance, reliable air filters should be replaced. If you often drive in congested urban areas, you can use the fuel bank regularly to prevent fuel injector blockage. For naturally aspirated engines, it is recommended to check for carbon deposits every 60000 kilometers. (Tip: Naturally aspirated engines may shake every 40000 kilometers due to excessive carbon buildup.)

　　3、剎車深度保養(yǎng)當(dāng)你開了幾萬公里去保養(yǎng)的時候，有的地方會讓你做大幾百的剎車深度養(yǎng)護(hù)服務(wù)，這又是一個花冤枉錢的項目。其實，正常到了需要更換剎車片的時候，叫師傅在剎車片的一些地方涂點油就可以了，也不會額外收你費用。

　　3. When you drive tens of thousands of kilometers for brake depth maintenance, some places may require you to provide several hundred brake depth maintenance services, which is another project that wastes money. Actually, when it's time to replace the brake pads, just ask the technician to apply some oil to some areas of the brake pads, and they won't charge you extra.

　　4、無水冷卻液

　　4. Anhydrous coolant

　　有的地方會推薦你使用無水冷卻液，它的最大特點除了貴還是貴，你說它散熱效果好吧，它是油，難道散熱效果比水還好嗎？說它終身免維護(hù)，它也會損耗的。如果你換了這種冷卻液，會在冷卻液蓋上貼上“禁止加水”的標(biāo)，萬一車輛哪天在路上跑著的時候漏水了，去哪找這種冷卻液？

　　Some places will recommend you to use anhydrous coolant. Its biggest feature is that it is expensive. You said it has good heat dissipation effect. It is oil. Is its heat dissipation effect better than water? It is said to be maintenance free for life, but it will also wear out. If you change to this type of coolant, you will put a "Do not add water" label on the coolant cap. In case the vehicle leaks water while running on the road one day, where can you find this type of coolant?

　　所以冷卻液就踏踏實實更換原廠的吧，本身奔馳的冷卻液就是10年或者20萬公里才更換，平時保養(yǎng)的時候添加一些就好了。

　　So let's replace the coolant with the original one steadily. Mercedes Benz's coolant is only replaced after 10 years or 200000 kilometers. Just add some during regular maintenance.

　　本文由 濟(jì)南奔馳汽車保養(yǎng)  友情奉獻(xiàn).更多有關(guān)的知識請點擊  http://www.nanofluidizer.com/   真誠的態(tài)度.為您提供為全面的服務(wù).更多有關(guān)的知識我們將會陸續(xù)向大家奉獻(xiàn).敬請期待.

　　This article is a friendly contribution from Jinan Mercedes Benz Automotive Maintenance For more related knowledge, please click http://www.nanofluidizer.com/ Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.