BMW – Computer Diagnostics and Programing

Get On The Can Bus I’m old enough to remember the days when cars only had one computer, the engine control unit, aka the “ECU”. Now a days most cars have not not one, but dozens of computers or modules all talking to each other over what is called a Controller Area Network or “CAN Bus”, somewhat like the “USB” (Universal Serial Bus) of your home computer. Cool idea as it simplifies running hundreds of individual wires, but it really ups the technology service game. Here we are programming a replacement part, known as RDC module, that is part of [...]

By | May 20th, 2019|Case Studies|Comments Off on BMW – Computer Diagnostics and Programing

Volvo XC70 Headlight Electrical Problem – Fix For Once And All

Problem Vehicle presented with an intermittent headlight, warnings being received on the dash warning light system, and the headlight itself was inoperative when first examined. Generally speaking, finding the reason for the failure is just as important, if not more so, then repairing the problem itself. If you simply replace a part, without correcting the root cause, the problem is just going to reappear, often ruining the newly installed part. At Atlantic Motorcar, we test, not guess, and we have the knowledge, and experience, to make sure it's done right, the first time, which results in happy customers! Finding Examination by [...]

By | November 20th, 2018|Case Studies|Comments Off on Volvo XC70 Headlight Electrical Problem – Fix For Once And All

Good News – Mercedes SBC – Sensotronic Brake System Recall – Extended To 25 Years!

Good News Good news for those who own a 2003 to 2012 Mercedes equipped with the troublesome SBC brake system. The original 10 year recall warranty extension, has been extended again, this time to an unprecedented 25 years, with unlimited milage!  If you reference the attached images, you'll find that Mercedes has done the right thing, and not only extended the warranty, but also agreed to reimburse for previous repairs! Kudos to the good folks at Mercedes HQ who have taken this course, it's not only right for the customers, but also right for the company. Read on for more [...]

By | September 24th, 2018|Case Studies|Comments Off on Good News – Mercedes SBC – Sensotronic Brake System Recall – Extended To 25 Years!

“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 | July 20th, 2018|Case Studies|Comments Off on “Rat Race” – Mercedes Wiring Harness Repair – Damaged By Rodents

BMW Electric Water Pump Failure – How, Why, and What To Prevent

What This BMW 540 has was diagnosed with a defective engine coolant pump. Symptoms were overheating and damaged drive belt system. Disassembly of the front cover and removal of the water pump allowed for inspection of the pump. How The mode of failure with this pump appears to be simple age and miles, likely exasperated by a lack of coolant changes. The bearing failed on the pump, allowing the plastic impeller to contact the aluminum housing, you can see the growing on the surface. Finally the plastic impeller itself failed, the vehicle overheated, and came to a stop. As the water pump [...]

By | July 18th, 2018|Case Studies|Comments Off on BMW Electric Water Pump Failure – How, Why, and What To Prevent

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

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

Vintage Mercedes Project – Or Reviving A Cold War Warrior

Vintage Mercedes Project - Cold War Warrior Mercedes 300TE The vintage Mercedes project car is on the road tonight, Jared, one of our Service Advisors is doing the overnight road test. Just one year before the Berlin war fell, this Mercedes rolled new out of the factory. I'm a Cold War fan, student and history buff, having grown up in that era, so this project had a special meaning to me, one of the last Mercedes to roll out when "West Germany" was still a country. Everything is done except for the engine oil leak reseal, will be [...]

By | December 7th, 2017|Case Studies|Comments Off on Vintage Mercedes Project – Or Reviving A Cold War Warrior