Mercedes specialistsMercedes engine repair in Dubai by Royal Prince Auto Care, DIP 2. We find the part behind each leak or warning and replace it.
Tell us your car, what it needs and how to reach you. A service advisor will call you back to talk through the work.
The work we carry out on Mercedes models at our Dubai Investment Park workshop. Open the full details below.
A failing Mercedes engine shows 6 signs, and each one belongs to a named engine. Coolant warnings appear in red on the M256, in yellow on the M264 and with a misfire on the OM654 diesel. The other 3 are a low oil level warning, a red oil pressure warning and a check engine light on an AMG V8.
On the M256 inline six, a red coolant warning with code U019F00 or U019F87 leads to the electric coolant pump circuit. The pump takes both a 12 V plug and a 48 V plug.
We run the guided test, then clean and tighten each plug, the fuse box connections and the pump ground. When the pump reads below 2 ohms to the engine block or touches its heat shield, we modify the engine insulation. An open circuit inside the engine control unit then calls for a new unit.
The M264 fits the C-Class (205), E-Class (213) and GLC (253). On these cars, a yellow coolant warning with low flow codes can come from air trapped in the transmission cooler circuit. A low coolant level means a leak instead.
We repair the leak when the level is low. With the level correct, we bleed the transmission cooler circuit on a cold engine until coolant runs from the connection, then clear the codes.
An OM654 diesel that shows a low coolant warning, misfires and leaks no coolant outside can have an internal leak in its charge air cooler. Coolant then reaches the intake and the cylinders.
Through the throttle valve opening, we look for coolant inside the cooler and run a compression test when it is there. We then clean out the coolant and replace the charge air cooler and the glow plugs, followed by an oil and filter change.
On the M254 four-cylinder and the M256 six-cylinder, a low oil level warning with oil under the car can come from the rear crankshaft seal. That seal rolled out of shape when it was installed.
Behind the inspection cover beside the transmission, we check the bell housing for oil. When oil is there, the transmission comes out and we replace a damaged or leaking seal.
A red oil pressure warning on an M254 comes with code P052400 or P052497. The engine control unit has measured oil pressure that is too low.
The oil level comes first, because a low level has its own cause to find. We check for external leaks and record the oil pressure at idle, 1,000, 2,000 and 3,000 rpm. Then we repair the leak, level or oil supply fault behind the low reading.
An AMG V8 from the M17x engine group with the check engine light on can run rough or lose power, with misfire codes stored. No single cause lies behind this fault.
On a G 63 (463) with the M177, the fix can be new engine control software. We test the ground connections, the ignition coils and the intake, then replace the failed part. A software case goes to a Mercedes dealer for the update.
Our Mercedes engine repair in Dubai covers these jobs:
We carry out these jobs on the petrol, diesel and Mercedes-AMG engines of the ranges listed further down this page.
Mercedes engine failure in Dubai has 6 causes. The first 3 are part faults: debris in the M139 coolant, a porous M254 timing case cover and a leaking OM654 fuel pump seal. Low oil, a weak coolant mix and sand in the intake complete the list.
Dubai averages a daily maximum of 41.9 °C in August, has reached 48.8 °C and records rising sand on 17.7 days annually. In slow summer traffic the radiator fan carries the cooling load, because it runs whenever the airflow cannot cool the radiator. We read the fault memory, test the cooling circuit and trace the oil, then repair the cause found.
We fix the part that failed and the cause behind it, and you get these results:
With the circuit sealed and bled, the coolant holds its level and the warning lamp stays dark between services.
A seal or cover that seals again keeps engine oil off the floor of your parking space.
With the misfiring cylinder repaired, the V8 idles without shaking and pulls with its full output.
A replacement turbo fitted once the cause is gone escapes the fault that ended the old unit.
A clean and sealed cooling circuit holds the engine at working temperature through slow summer traffic.
With the leak sealed, the oil stays between its marks from one service to the next, and the low oil level warning stays off.
The 48 V system changes Mercedes engine work through the integrated starter-generator, a starter and alternator in one electric motor. On the GLS, it sits between the engine and the transmission. Every petrol and diesel engine of the 2026 C-Class carries a 17 kW version inside the 9G-TRONIC transmission housing.
Engine oil in the bell housing can reach that unit on the M254 and M256. We replace an integrated starter-generator that engine oil has contaminated.
On series such as the 206, 214 and 223, the 48 V battery contactors can stay closed once the 12 V ground is off. Before engine work, we measure the 48 V side and disconnect the 48 V battery ground when more than 3 V remains.
Our engine work on a Mercedes runs in this order, and the fault decides which tests apply:
We note the warning colour and when the fault appears: cold, hot, at idle or under load. Those conditions return in the final road test.
A diagnostic tester reads every stored code and the live engine values. The codes point to the tests the engine gets next.
The circuit stays under test pressure while we check the engine bay, the underside and the cabin for coolant. On an OM654, the test pressure stays at 1.5 bar or below to protect the circuit.
We clean the leak area, apply trace powder and run the engine on the lift. Fresh oil in the powder marks the leaking seal or cover.
A compression test finds the weak cylinder. Air fed into that cylinder then escapes at the intake, tailpipe, oil filler or radiator. The exit point names the fault: an intake or exhaust valve, the piston rings or the head gasket.
Once the repair is complete, the codes are cleared and we drive under the recorded conditions. A final read of the fault memory and a leak check close the job.
Book a Mercedes engine check by phone or WhatsApp, and quote the model and the warning on the display.
The cost of Mercedes engine repair in Dubai turns on 4 factors. They are the engine fitted, the access its parts need, the parts renewed together and the spread of the damage. A new turbocharger, for example, comes with a new charge air cooler, air filter, oil and oil filter.
We set the parts list from the test results, not from the warning alone.
Our Mercedes engine work stands on these practices:
Mercedes ties each engine fix to an engine family, such as the M254, the M256 or the OM654. We read the engine code from the car before testing starts.
We fill the oil grade that the Mercedes sheet lists for the engine. An M254 takes SAE 0W-20 to MB 229.71 or 229.72, and an M177.7 takes 0W-40 to MB 229.51 or 229.52. Low-viscosity grades in an engine not released for them can damage it.
On an M17x V8 with oil at the rear main seal, we replace both air-oil separators first and test again. The seal plate comes out when the leak remains, with the sealant laid on the block.
We refill the M264 cooling circuit by vacuum, as Mercedes sets out, so no air stays trapped in it.
Each cooling job includes a look for oil in the coolant tank. Oil there marks a leak at the cylinder head gasket or the oil cooler, and we replace the part that leaks.
We repair a coolant leak at its source and never pour sealant into the radiator.
We repair the engines of these Mercedes-Benz ranges, shown with their series codes:
The 2026 C-Class runs the M254 EVO 2.0 litre four-cylinder petrol engine in 3 outputs from 130 to 190 kW. The 2026 AMG GLE 53 uses the M256 EVO 3.0 litre inline six, and the GLE 400 d launched with the OM656 six-cylinder diesel.
Mercedes-AMG builds the M139 2.0 litre four-cylinder with up to 310 kW. The 2026 GLE 63 S and GLS 63 use the M177 EVO 4.0 litre biturbo V8. The G 500 runs the M176 V8 from its 2019 models on.
A Mercedes engine lasts longer in Dubai through 4 owner habits. They are mixed coolant for top-ups, a gentle drive from cold, oil changes on time and clean radiator fins. Each habit protects the cooling circuit, the turbocharger or the oil that lubricates the engine.
Plain water dilutes the antifreeze and can damage a polyamide expansion tank. Use coolant mixed to strength for any top-up.
Full throttle straight after a cold start can tear the oil film inside the turbocharger. Keep the revs low while the engine warms up.
Oil kept in past its change point deteriorates and protects the engine less. Book the change when it falls due.
Dirt on the radiator fins cuts heat exchange, so the engine runs hotter and the fan runs without a break. A high-pressure jet damages the fins, so we clean them at low pressure at each cooling check.
Tell us the make, model and what the car is doing, and we book it in at our Dubai Investment Park 2 workshop. Free pickup and drop-off by our driver comes with a service contract. Every service comes with a free car wash.
Regular servicing keeps small faults from turning into big repairs. Both packages are carried out by certified technicians using genuine or quality parts.
Each package is quoted for your car. Call +971 50 216 0864 with the make and model for an estimate.
Reviews left on our Google listing, in the reviewers' own words.
632 Google reviews
“I had my MG HS Trophy serviced at 70,000 km at Royal Prince Maintenance Workshop. The workshop manager and service advisor were helpful and supportive throughout, and the technical team was very experienced. They explained the service clearly and completed the work on time. I’m very happy with the experience and highly recommend this workshop.”
Tarik Ele on Google“Well explained the issue of the car, fast and reliable. Thanks to staff named Nikhil Mehta who handle my car. Highly recommended.”
noriel comia on Google“Royal Prince Auto Care in Dubai Investment Park is truly one of those rare places where you get both quality and cost-effectiveness together. In today’s market, finding a workshop that genuinely cares for your vehicle, maintains good service standards, and still keeps the pricing reasonable is not easy. But Royal Prince Auto Care has managed to give me that confidence. All my vehicle care and service work is being handled by Royal Prince Auto Care, and I must give special compliments to their workshop team. Their approach is professional, honest, and very customer-focused. From the way they inspect the vehicle to the way they explain the work required, everything feels transparent and well-managed. The service level at this place is impressive. Whether it is regular maintenance, repairs, body work, detailing, or general vehicle care, they handle things with proper attention and responsibility. The team makes you feel that your vehicle is in safe hands, and that peace of mind matters a lot. What I appreciate most is that they do not compromise on quality while still being cost-effective. That combination is barely hard to find, but I found it here. The workshop team deserves special appreciation for their effort, patience, and quality of work. A reliable, professional, and value-for-money auto care centre in Dubai. Highly recommended for anyone looking for trustworthy vehicle service with excellent workshop support.”
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AJAY FRANCIS on Google“Now I have BMW Z4, before Wrangler Jeep, Mini Couper, I always prefer this car service center! They are very trustworthy and all the technician are very knowledgeable! Special thanks to Mr. Nikhil Mehta , the way he treat the customer, amazing 😍!so thanks and keep it up”
Debendra MishraEdited on Google“I own a Mercedes GL500 and recently had suspension and A/C work done at Royal Prince Auto Care. The whole experience was excellent from start to finish. The team was very responsive, attentive, and professional. They clearly explained the work needed on my vehicle and completed everything to a high standard. A special thanks to Mr. Nikhil, who took the time to explain the repairs and procedures in a simple way. Throughout the process, he kept me updated with videos and detailed information about the condition of the old parts, which gave me a lot of confidence and transparency. Special mention to Mr. Bharath for taking the time to do the test drive with me before and after the repairs. He helped me better understand my vehicle and made sure everything was working perfectly. Thank you, Royal Prince Auto Care, for the great service. It's not easy to find a reliable garage, and I'm glad I found one. I highly recommend this garage to anyone looking for a one-stop solution for their vehicle maintenance and repairs.”
Kousic S Nair on Google“I was referred to Royal Prince Auto Care by a colleague, and I decided to take my Hyundai Santa Fe there for service. I am extremely satisfied with the quality of service I received. The team at Royal Prince Auto Care is professional, knowledgeable, and genuinely committed to customer satisfaction. A special thanks to Mr. Bharath for his exceptional support and attention to detail. His professionalism, friendly approach, and clear communication made the entire experience smooth and hassle-free. The care and dedication shown toward my vehicle were truly impressive, and it gave me great confidence in their workmanship. Based on my experience, I would highly recommend Royal Prince Auto Care to my friends, colleagues, and anyone looking for reliable and trustworthy automotive service. Thank you Bharath and the entire team for the excellent service. Keep up the great work! ⭐⭐⭐⭐⭐”
Jibin Joseph on Google“I have been servicing and maintaining my vehicle with Royal Prince Auto Care, and I am extremely impressed with the quality of their work. The level of care and attention they give to every vehicle is truly exceptional. Their team is highly knowledgeable, professional, and always willing to help. Whether it's a minor repair, routine maintenance, or a major job such as an engine overhaul, they handle every task with expertise and precision. What stands out most is their commitment to customer satisfaction and their ability to diagnose and resolve issues efficiently. I have always had a great experience with them and can confidently recommend Royal Prince Auto Care to anyone looking for reliable and trustworthy automotive service. Kudos to the entire team for their outstanding work and dedication! ⭐⭐⭐⭐⭐”
Swalih Shalu on Google“I have been a customer of Royal Prince Auto Care since 2021 when I owned a Nissan X-Trail, and from day one I have consistently received outstanding service. Their professionalism, attention to detail, and commitment to quality have always impressed me. For the past two years, I have owned a Toyota RAV4, and despite purchasing it brand new, I have chosen to service it exclusively at Royal Prince Auto Care rather than at the dealership. The confidence I placed in their team has been fully justified. They have maintained my vehicle to such a high standard that it feels every bit as well cared for as an agency-maintained car. A special thanks to Mr. Bharath for his exceptional support and dedication in keeping my vehicle in top-notch condition. His expertise, honesty, and customer-focused approach make every visit a great experience. I highly recommend Royal Prince Auto Care to anyone looking for reliable, professional, and high-quality vehicle maintenance services. In fact, many of my colleagues and friends have also become customers after hearing about my positive experiences.”
justine tharu p on Google“I have used Royal Prince Auto Care a couple of times, and even during my very first visit, I was genuinely impressed by the team. The reception staff, especially Nikhil, Nikhil Mehta, and Bharath, made the entire experience smooth and welcoming. Their professionalism, friendly approach, and willingness to assist customers truly stand out. One thing I really appreciate about Royal Prince Auto Care is their transparency. Unlike many workshops that don’t allow customers into the work area, they are completely open and let you see the work being carried out on your vehicle, which builds a great deal of trust and confidence. The technicians are also very skilled and approachable. A special mention to Sukhwinder, the Punjabi technician who handled my wheel alignment with great precision and professionalism. Overall, Royal Prince Auto Care offers reliable service, honest communication, and a customer-friendly environment. I highly recommend them to anyone looking for a trustworthy and transparent garage for their vehicle maintenance and repairs.”
Amruth Vyshakh on GoogleMost recent first.
Dubai Investment Park 2. Ramps, a body shop and a detailing bay, all in one place.
No. A Mercedes dealer carries out recall work and engine control software updates. Our Dubai Investment Park 2 workshop repairs seals, coolant pumps, thermostats, charge air coolers and turbochargers. We refer software and recall cases to the dealer.
Yes. A 2023 UAE recall covers the fuel pump impeller on 11 series from 2021 to 2024, such as the C-Class (206) and G-Class (463). A 2022 UAE recall covers fuel rail leaks on petrol C-Class (205), E-Class (213) and G-Class (463) cars. We check for open recalls, and a Mercedes dealer fixes them.
Yes. A 2025 recall in Qatar covers 2023 to 2025 GLE and GLS cars. Their engine control software can raise combustion failures at idle and part load while the catalyst heats up. We read the misfire codes, and a Mercedes dealer loads the corrected software.
Yes. Mercedes lists plug-in hybrid versions of the M 254 and M 256 petrol engines, and both take SAE 0W-40 oil to MB 229.51 or 229.52. We repair that petrol engine. Work on the 400 V system of a car such as the E 300 e goes to a Mercedes dealer.
Call or send a WhatsApp message with your Mercedes model, its year and what the car is doing, and book it in at our Dubai Investment Park 2 workshop.
