Mercedes Oil Cooler Seals, 642 Diesel Engine Cause And Correction

If you own a Mercedes with a BlueTEC diesel engine, you may have heard quite a bit about the oil cooler leaks that have plagued some models. It is in fact quite a common issue with many of the BlueTEC diesel Mercedes. If  like many of the owners out there, you are probably left with a lot of questions and wondering things like, “Which BlueTEC engines have oil cooler leaks?”, and “What are the signs of a leaking oil cooler?” That’s where the Atlantic Motorcar Center comes in. You see, we're professionals in Mercedes service, after 33 years, we know these [...]

By | April 24th, 2018|Case Studies|Comments Off on Mercedes Oil Cooler Seals, 642 Diesel Engine Cause And Correction

“Rat Race” – Mercedes Wiring Harness Repair – Damaged By Rodents

AMC Tech Case - Rat Race This Mercedes E350 came in with a no start condition, radio inoperative, and a host of other electrical issues. We weren't the first to work on this vehicle, it was clear that many hands had been in here before, and apparently given up without success. Cause The highly skilled AMC Service Techs Kyle and Scotty collaborated, were able to trace the fault, after a good day of diagnostics, and interior disassembly, to a electrical wiring and fiber optic cable issue, located inside one of the wire chases. As these chases run from the front [...]

By | February 16th, 2018|Case Studies|Comments Off on “Rat Race” – Mercedes Wiring Harness Repair – Damaged By Rodents

Tech Tip – The Truth About Lifetime Transmission Fluids – “Oil is Cheaper Than Metal”

BMW, Mini Cooper Transmission Fluid There is a trend with many manufacturers to use so called “Lifetime” transmission fluids in their new cars. Audi, BMW and Mercedes have been doing this for years. The real question is what is a “lifetime”? If the lifetime of the car is the reference point, most owners will be sorely disappointed, for it seems to us that almost all of the fluids need service around 60K miles, far shorter than the lifetime of most European cars. While fluids and lubricants have doubtlessly improved over time, we suspect that the real reason for [...]

By | January 15th, 2018|Case Studies|Comments Off on Tech Tip – The Truth About Lifetime Transmission Fluids – “Oil is Cheaper Than Metal”

BMW Engine Camshaft Bolts Problem – Repair and Correction

What Happens Certain late model BMWs can experience a problem with the camshaft sprocket retention bolts failing. This is a design defect, and well know in professional BMW service circles. You can see on the photo below, that VANOS (variable valve timing system) to intake camshaft bolts have broken and backed out, 3 of the 4 bolts are damaged and loose. BMW said “in very rare cases the bolts holding the variable camshaft timing (Vanos) unit housing may become loose or, in extreme cases, break.” In such cases, the driver would be alerted by a check-engine warning light. Power to the [...]

By | January 10th, 2018|Case Studies|Comments Off on BMW Engine Camshaft Bolts Problem – Repair and Correction

Volvo Differential Rebuilding Service – Out of Our Area? Send Your Unit To Us

The Problem The rear differential design has been in use in the Volvo world since the 2008 to at least the 2014 model year, so it’s something to consider if you own a vehicle in that range. We service a tremendous amount of Volvo XC70s, and have seen the problem largely on those models, but have read reports of it being an issue on the S80 as well. Now the earlier Volvos had their own set of differential or bevel gear problems, which you can read about on our blog at Volvo AOC problems. What We Do We mentioned that [...]

By | January 4th, 2018|Case Studies|Comments Off on Volvo Differential Rebuilding Service – Out of Our Area? Send Your Unit To Us

AMC Service Tip – Replacing Stuck or Blind Hole Bearing Races

Problem Removing Stuck Bearing Races Tapered roller bearings are commonly found in wheel bearings, transmission, differentials, and other automotive systems. They consist of two parts, the bearing cone with the roller bearing, and a “race”, which is the highly polished and hardened surface on which the bearing rides. The race is pressed into the part or casting and the roller bearing installed on top of it. So let’s say you have a bearing race (transmission, wheel, differential or other) in a “blind” hole that you need to replace. By “blind” we mean you can’t access it from the back of the [...]

By | November 22nd, 2017|Case Studies|Comments Off on AMC Service Tip – Replacing Stuck or Blind Hole Bearing Races

Investing In Your Team – BMW Service Training

Investing In Your Team - BMW Training - Last Weekend Want to most sincerely thank to the awesome AMC Team for attending BMW Service Training last weekend. I know that giving up a weekend isn't what everyone looks forward to. Ongoing training is something that we very strongly believe in here at AMC, it's been a key corporate value since we first started in business over 30 years ago. It benefits you the customer as it assures that we always have the latest and greatest in knowledge, and service techniques, to service your car promptly and efficiently. It's also [...]

By | November 13th, 2017|Case Studies|Comments Off on Investing In Your Team – BMW Service Training

BMW Service Engine Clogged Breather System – Oil Consumption Use

BMW Service Valve Cover -Note sludge or clogging in ventilation port BMW Service with N52 Engine - This vehicle came from another shop with an uncorrected engine oil leak and high oil use. Consumption was on the order of 1 quart per 100 miles, yes, you read that right. We started by finding the incorrect engine oil fill cap had been installed by the previous facility, causing an oil leak on the top of the engine, but that was only one problem. The real culprit was a problem with the crankcase ventilation system. Using our special BMW service diagnostic tool, we [...]

By | January 11th, 2016|Case Studies|Comments Off on BMW Service Engine Clogged Breather System – Oil Consumption Use

BMW Engine – When Good Oil Pans, Go Bad – Oil Leaks

Drive Oil Level Data I title this when "Good Oil Pans Go Bad" to illustrate a point, 99% of the time, the engine oil pan does nothing but hold your engine's oil, but when the gasket between the engine block and pan fails, it's a bad thing. What Aside from the engine oil leak making a mess in your garage or parking space, and possible engine damage from low oil level, that oil has a nasty habit of finding it's way to your engine's catalytic convertor. Oil on a very hot item like a convertor at speed, aside [...]

By | March 13th, 2015|Case Studies|Comments Off on BMW Engine – When Good Oil Pans, Go Bad – Oil Leaks

BMW Service – Taillight Wiring Electrical Problem

BMW E60 (528Xi) - The car presented with an intermittent turn signal and brake light, warnings being received on the dash mounted iDrive system. Examination by our BMW Service techs quickly reveled that the fault was the rear rear circuit board, and wiring harness for the passenger side. BMW electrical connector, noted melted ground contact pin. You will note that the ground lead wire and electrical connector have melted into the plastic wiring plug, damaging both the wire, the connector, and the taillight circuit board. BMW has had an issue with this on the E60, and on other BMW [...]

By | March 2nd, 2015|Case Studies|Comments Off on BMW Service – Taillight Wiring Electrical Problem